Vulnerabilities > CVE-2018-5803 - Improper Input Validation vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3698-1.NASL description It was discovered that the nested KVM implementation in the Linux kernel in some situations did not properly prevent second level guests from reading and writing the hardware CR8 register. A local attacker in a guest could use this to cause a denial of service (system crash). (CVE-2017-12154) Fan Wu, Haoran Qiu, and Shixiong Zhao discovered that the associative array implementation in the Linux kernel sometimes did not properly handle adding a new entry. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-12193) It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15265) It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) Julian Stecklina and Thomas Prescher discovered that FPU register states (such as MMX, SSE, and AVX registers) which are lazily restored are potentially vulnerable to a side channel attack. A local attacker could use this to expose sensitive information. (CVE-2018-3665) Wang Qize discovered that an information disclosure vulnerability existed in the SMBus driver for ACPI Embedded Controllers in the Linux kernel. A local attacker could use this to expose sensitive information (kernel pointer addresses). (CVE-2018-5750) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that an integer overflow error existed in the futex implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-6927) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110900 published 2018-07-03 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110900 title Ubuntu 14.04 LTS : linux vulnerabilities (USN-3698-1) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-514.NASL description The openSUSE Leap 42.3 kernel was updated to 4.4.132 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3639: Information leaks using last seen 2020-06-05 modified 2018-05-25 plugin id 110104 published 2018-05-25 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110104 title openSUSE Security Update : the Linux Kernel (openSUSE-2018-514) (Spectre) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0070_KERNEL.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel packages installed that are affected by multiple vulnerabilities: - Integer overflow in the aio_setup_single_vector function in fs/aio.c in the Linux kernel 4.0 allows local users to cause a denial of service or possibly have unspecified other impact via a large AIO iovec. NOTE: this vulnerability exists because of a CVE-2012-6701 regression. (CVE-2015-8830) - A weakness was found in the Linux ASLR implementation. Any user able to running 32-bit applications in a x86 machine can disable ASLR by setting the RLIMIT_STACK resource to unlimited. (CVE-2016-3672) - The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. (CVE-2016-7913) - Use-after-free vulnerability in the snd_pcm_info() function in the ALSA subsystem in the Linux kernel allows attackers to induce a kernel memory corruption and possibly crash or lock up a system. Due to the nature of the flaw, a privilege escalation cannot be fully ruled out, although we believe it is unlikely. (CVE-2017-0861) - A reachable assertion failure flaw was found in the Linux kernel built with KVM virtualisation(CONFIG_KVM) support with Virtual Function I/O feature (CONFIG_VFIO) enabled. This failure could occur if a malicious guest device sent a virtual interrupt (guest IRQ) with a larger (>1024) index value. (CVE-2017-1000252) - Linux kernel Virtualization Module (CONFIG_KVM) for the Intel processor family (CONFIG_KVM_INTEL) is vulnerable to a DoS issue. It could occur if a guest was to flood the I/O port 0x80 with write requests. A guest user could use this flaw to crash the host kernel resulting in DoS. (CVE-2017-1000407) - A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space. (CVE-2017-1000410) - A race condition was found in the Linux kernel before version 4.11-rc1 in last seen 2020-06-01 modified 2020-06-02 plugin id 127272 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127272 title NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0070) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1761-1.NASL description The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3665: Prevent disclosure of FPU registers (including XMM and AVX registers) between processes. These registers might contain encryption keys when doing SSE accelerated AES enc/decryption (bsc#1087086) - CVE-2018-5848: In the function wmi_set_ie(), the length validation code did not handle unsigned integer overflow properly. As a result, a large value of the last seen 2020-06-01 modified 2020-06-02 plugin id 110636 published 2018-06-21 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110636 title SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1761-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1762-1.NASL description The SUSE Linux Enterprise 12 GA LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3665: Prevent disclosure of FPU registers (including XMM and AVX registers) between processes. These registers might contain encryption keys when doing SSE accelerated AES enc/decryption (bsc#1087086) - CVE-2018-5848: In the function wmi_set_ie(), the length validation code did not handle unsigned integer overflow properly. As a result, a large value of the last seen 2020-06-01 modified 2020-06-02 plugin id 110637 published 2018-06-21 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110637 title SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1762-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1855-1.NASL description The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-5848: In the function wmi_set_ie(), the length validation code did not handle unsigned integer overflow properly. As a result, a large value of the last seen 2020-06-01 modified 2020-06-02 plugin id 110838 published 2018-07-02 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110838 title SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1855-1) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2018-038.NASL description According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of certain crafted system calls. - It was found that _sctp_make_chunk() function did not check if the chunk length for INIT and INIT_ACK packets was within the allowed limits. A local attacker could exploit this to trigger a kernel crash. - It was discovered that nfnl_cthelper_list structure was accessible to any user with CAP_NET_ADMIN capability in a network namespace. An unprivileged local user could exploit that to affect netfilter conntrack helpers on the host. - It was discovered that a nlmon link inside a child network namespace was not restricted to that namespace. An unprivileged local user could exploit that to monitor system-wide netlink activity. - The KEYS subsystem in the Linux kernel omitted an access-control check when writing a key to the current task last seen 2020-06-01 modified 2020-06-02 plugin id 110311 published 2018-06-04 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110311 title Virtuozzo 7 : readykernel-patch (VZA-2018-038) NASL family Scientific Linux Local Security Checks NASL id SL_20181030_KERNEL_ON_SL7_X.NASL description Security Fix(es) : - A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) - kernel: out-of-bounds access in the show_timer function in kernel/time /posix-timers.c (CVE-2017-18344) - kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781) - kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) - kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) - kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830) - kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) - kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) - kernel: Salsa20 encryption algorithm does not correctly handle zero- length inputs allowing local attackers to cause denial of service (CVE-2017-17805) - kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208) - kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120) - kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130) - kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344) - kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803) - kernel: buffer overflow in drivers/net/wireless/ath/wil6210/wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848) - kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878) - kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026) - kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913) - kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232) - kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092) - kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094) - kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118) - kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740) - kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c (CVE-2018-7757) - kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322) - kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879) - kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881) - kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883) - kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940) last seen 2020-03-18 modified 2018-11-27 plugin id 119187 published 2018-11-27 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119187 title Scientific Linux Security Update : kernel on SL7.x x86_64 (20181030) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3083.NASL description An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/ posix-timers.c (CVE-2017-18344) * kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781) * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) * kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830) * kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) * kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) * kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial of service (CVE-2017-17805) * kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208) * kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120) * kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130) * kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344) * kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: buffer overflow in drivers/net/wireless/ath/wil6210/ wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848) * kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878) * kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026) * kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913) * kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232) * kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092) * kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094) * kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118) * kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740) * kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/ libsas/sas_expander.c (CVE-2018-7757) * kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322) * kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879) * kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881) * kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883) * kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940) Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391; Trend Micro Zero Day Initiative for reporting CVE-2018-10902; Qualys Research Labs for reporting CVE-2018-1120; Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130; and Wen Xu for reporting CVE-2018-1092 and CVE-2018-1094. last seen 2020-06-01 modified 2020-06-02 plugin id 118525 published 2018-10-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118525 title RHEL 7 : kernel (RHSA-2018:3083) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1369.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2017-0861 Robb Glasser reported a potential use-after-free in the ALSA (sound) PCM core. We believe this was not possible in practice. CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all other processes running on the system. This specific attack has been named Spectre variant 2 (branch target injection) and is mitigated for the x86 architecture (amd64 and i386) by using the last seen 2020-03-17 modified 2018-05-03 plugin id 109531 published 2018-05-03 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109531 title Debian DLA-1369-1 : linux security update (Spectre) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4161.NASL description Description of changes: [4.1.12-124.17.1.el7uek] - block: update integrity interval after queue limits change (Ritika Srivastava) [Orabug: 27586756] - dccp: check sk for closed state in dccp_sendmsg() (Alexey Kodanev) [Orabug: 28001529] {CVE-2017-8824} {CVE-2018-1130} - net/rds: Implement ARP flushing correctly (Hå kon Bugge) [Orabug: 28219857] - net/rds: Fix incorrect bigger vs. smaller IP address check (Hå kon Bugge) [Orabug: 28236599] - ocfs2: Fix locking for res->tracking and dlm->tracking_list (Ashish Samant) [Orabug: 28256391] - xfrm: policy: check policy direction value (Vladis Dronov) [Orabug: 28256487] {CVE-2017-11600} {CVE-2017-11600} [4.1.12-124.16.6.el7uek] - add kernel param to pre-allocate NICs (Brian Maly) [Orabug: 27870400] - mm/mempolicy.c: fix error handling in set_mempolicy and mbind. (Chris Salls) [Orabug: 28242475] {CVE-2017-7616} - xhci: Fix USB3 NULL pointer dereference at logical disconnect. (Mathias Nyman) [Orabug: 27426023] - mlx4_core: restore optimal ICM memory allocation (Eric Dumazet) [Orabug: 27718303] - mlx4_core: allocate ICM memory in page size chunks (Qing Huang) [Orabug: 27718303] - kernel/signal.c: avoid undefined behaviour in kill_something_info When running kill(72057458746458112, 0) in userspace I hit the following issue. (mridula shastry) [Orabug: 28078687] {CVE-2018-10124} - rds: tcp: compute m_ack_seq as offset from ->write_seq (Sowmini Varadhan) [Orabug: 28085214] - ext4: fix bitmap position validation (Lukas Czerner) [Orabug: 28167032] - net/rds: Fix bug in failover_group parsing (Hå kon Bugge) [Orabug: 28198749] - sctp: verify size of a new chunk in _sctp_make_chunk() (Alexey Kodanev) [Orabug: 28240074] {CVE-2018-5803} [4.1.12-124.16.5.el7uek] - netfilter: xt_TCPMSS: add more sanity tests on tcph->doff (Eric Dumazet) [Orabug: 27896802] {CVE-2017-18017} - kernel/exit.c: avoid undefined behaviour when calling wait4() wait4(-2147483648, 0x20, 0, 0xdd0000) triggers: UBSAN: Undefined behaviour in kernel/exit.c:1651:9 (mridula shastry) [Orabug: 28049778] {CVE-2018-10087} - x86/bugs/module: Provide retpoline_modules_only parameter to fail non-retpoline modules (Konrad Rzeszutek Wilk) [Orabug: 28071992] last seen 2020-06-01 modified 2020-06-02 plugin id 110997 published 2018-07-11 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110997 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4161) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1366-1.NASL description The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.131 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3639: Information leaks using last seen 2020-06-01 modified 2020-06-02 plugin id 110033 published 2018-05-23 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110033 title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:1366-1) (Spectre) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3654-1.NASL description Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639) Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975) It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193) It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222) It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065) It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068) It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757) It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995) Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781) Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110048 published 2018-05-23 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110048 title Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, vulnerabilities (USN-3654-1) (Spectre) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4164.NASL description Description of changes: kernel-uek kernel-uek [3.8.13-118.22.1.el7uek] - dm: fix race between dm_get_from_kobject() and __dm_destroy() (Hou Tao) {CVE-2017-18203} - drm: udl: Properly check framebuffer mmap offsets (Greg Kroah-Hartman) [Orabug: 27986407] {CVE-2018-8781} - kernel/exit.c: avoid undefined behaviour when calling wait4() wait4(-2147483648, 0x20, 0, 0xdd0000) triggers: UBSAN: Undefined behaviour in kernel/exit.c:1651:9 (mridula shastry) [Orabug: 27875488] {CVE-2018-10087} - kernel/signal.c: avoid undefined behaviour in kill_something_info When running kill(72057458746458112, 0) in userspace I hit the following issue. (mridula shastry) {CVE-2018-10124} - bluetooth: Validate socket address length in sco_sock_bind(). (mlevatic) [Orabug: 28130293] {CVE-2015-8575} - dccp: check sk for closed state in dccp_sendmsg() (Alexey Kodanev) [Orabug: 28220402] {CVE-2017-8824} {CVE-2018-1130} - sctp: verify size of a new chunk in _sctp_make_chunk() (Alexey Kodanev) [Orabug: 28240075] {CVE-2018-5803} - mm/mempolicy.c: fix error handling in set_mempolicy and mbind. (Chris Salls) [Orabug: 28242478] {CVE-2017-7616} - xfrm: policy: check policy direction value (Vladis Dronov) [Orabug: 28264121] {CVE-2017-11600} {CVE-2017-11600} - x86/fpu: Make eager FPU default (Mihai Carabas) [Orabug: 28156176] {CVE-2018-3665} - KVM: Fix stack-out-of-bounds read in write_mmio (Wanpeng Li) [Orabug: 27951287] {CVE-2017-17741} {CVE-2017-17741} - xfs: set format back to extents if xfs_bmap_extents_to_btree (Eric Sandeen) [Orabug: 27989498] {CVE-2018-10323} - Bluetooth: Prevent stack info leak from the EFS element. (Ben Seri) [Orabug: 28030520] {CVE-2017-1000410} {CVE-2017-1000410} - ALSA: hrtimer: Fix stall by hrtimer_cancel() (Takashi Iwai) [Orabug: 28058229] {CVE-2016-2549} - ALSA: timer: Harden slave timer list handling (Takashi Iwai) [Orabug: 28058229] {CVE-2016-2547} {CVE-2016-2548} - ALSA: timer: Fix double unlink of active_list (Takashi Iwai) [Orabug: 28058229] {CVE-2016-2545} - ALSA: seq: Fix missing NULL check at remove_events ioctl (Takashi Iwai) [Orabug: 28058229] {CVE-2016-2543} - ALSA: seq: Fix race at timer setup and close (Takashi Iwai) [Orabug: 28058229] {CVE-2016-2544} - ALSA: usb-audio: avoid freeing umidi object twice (Andrey Konovalov) [Orabug: 28058229] {CVE-2016-2384} - perf/hwbp: Simplify the perf-hwbp code, fix documentation (Linus Torvalds) [Orabug: 27947608] {CVE-2018-1000199} - Revert last seen 2020-06-01 modified 2020-06-02 plugin id 110998 published 2018-07-11 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110998 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4164) NASL family Fedora Local Security Checks NASL id FEDORA_2018-2BCE10900E.NASL description The 4.15.8 update contains a number of important fixes across the tree. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-03-14 plugin id 108307 published 2018-03-14 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108307 title Fedora 27 : kernel (2018-2bce10900e) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-3083.NASL description From Red Hat Security Advisory 2018:3083 : An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/ posix-timers.c (CVE-2017-18344) * kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781) * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) * kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830) * kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) * kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) * kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial of service (CVE-2017-17805) * kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208) * kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120) * kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130) * kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344) * kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: buffer overflow in drivers/net/wireless/ath/wil6210/ wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848) * kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878) * kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026) * kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913) * kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232) * kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092) * kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094) * kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118) * kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740) * kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/ libsas/sas_expander.c (CVE-2018-7757) * kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322) * kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879) * kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881) * kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883) * kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940) Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391; Trend Micro Zero Day Initiative for reporting CVE-2018-10902; Qualys Research Labs for reporting CVE-2018-1120; Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130; and Wen Xu for reporting CVE-2018-1092 and CVE-2018-1094. last seen 2020-06-01 modified 2020-06-02 plugin id 118770 published 2018-11-07 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118770 title Oracle Linux 7 : kernel (ELSA-2018-3083) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2018-041.NASL description According to the versions of the parallels-server-bm-release / vzkernel / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - The do_get_mempolicy() function in last seen 2020-06-01 modified 2020-06-02 plugin id 110694 published 2018-06-26 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110694 title Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2018-041) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3697-1.NASL description It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) Jann Horn discovered that the 32 bit adjtimex() syscall implementation for 64 bit Linux kernels did not properly initialize memory returned to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-11508) Wang Qize discovered that an information disclosure vulnerability existed in the SMBus driver for ACPI Embedded Controllers in the Linux kernel. A local attacker could use this to expose sensitive information (kernel pointer addresses). (CVE-2018-5750) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that an integer overflow error existed in the futex implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-6927) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110898 published 2018-07-03 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110898 title Ubuntu 17.10 : linux, linux-raspi2 vulnerabilities (USN-3697-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1855-2.NASL description The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated receive various security and bugfixes. The following security bugs were fixed : CVE-2018-5848: In the function wmi_set_ie(), the length validation code did not handle unsigned integer overflow properly. As a result, a large value of the last seen 2020-06-01 modified 2020-06-02 plugin id 118272 published 2018-10-22 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118272 title SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1855-2) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3656-1.NASL description Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975) It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193) It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222) It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065) It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068) It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757) It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995) Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781) Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110051 published 2018-05-23 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110051 title Ubuntu 16.04 LTS : linux-raspi2, linux-snapdragon vulnerabilities (USN-3656-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3096.NASL description An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/ posix-timers.c (CVE-2017-18344) * kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781) * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) * kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830) * kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) * kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) * kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial of service (CVE-2017-17805) * kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208) * kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120) * kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130) * kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344) * kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: buffer overflow in drivers/net/wireless/ath/wil6210/ wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848) * kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878) * kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026) * kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913) * kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232) * kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092) * kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094) * kernel: vhost: Information disclosure in vhost.c:vhost_new_msg() (CVE-2018-1118) * kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740) * kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/ libsas/sas_expander.c (CVE-2018-7757) * kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322) * kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879) * kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881) * kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883) * kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940) Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391; Trend Micro Zero Day Initiative for reporting CVE-2018-10902; Qualys Research Labs for reporting CVE-2018-1120; Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130; and Wen Xu for reporting CVE-2018-1092 and CVE-2018-1094. last seen 2020-06-01 modified 2020-06-02 plugin id 118528 published 2018-10-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118528 title RHEL 7 : kernel-rt (RHSA-2018:3096) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4187.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2015-9016 Ming Lei reported a race condition in the multiqueue block layer (blk-mq). On a system with a driver using blk-mq (mtip32xx, null_blk, or virtio_blk), a local user might be able to use this for denial of service or possibly for privilege escalation. - CVE-2017-0861 Robb Glasser reported a potential use-after-free in the ALSA (sound) PCM core. We believe this was not possible in practice. - CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all other processes running on the system. This specific attack has been named Spectre variant 2 (branch target injection) and is mitigated for the x86 architecture (amd64 and i386) by using the last seen 2020-06-01 modified 2020-06-02 plugin id 109517 published 2018-05-02 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109517 title Debian DSA-4187-1 : linux - security update (Spectre) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2018-0237.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - dm: fix race between dm_get_from_kobject and __dm_destroy (Hou Tao) (CVE-2017-18203) - drm: udl: Properly check framebuffer mmap offsets (Greg Kroah-Hartman) [Orabug: 27986407] (CVE-2018-8781) - kernel/exit.c: avoid undefined behaviour when calling wait4 wait4(-2147483648, 0x20, 0, 0xdd0000) triggers: UBSAN: Undefined behaviour in kernel/exit.c:1651:9 (mridula shastry) [Orabug: 27875488] (CVE-2018-10087) - kernel/signal.c: avoid undefined behaviour in kill_something_info When running kill(72057458746458112, 0) in userspace I hit the following issue. (mridula shastry) (CVE-2018-10124) - bluetooth: Validate socket address length in sco_sock_bind. (mlevatic) [Orabug: 28130293] (CVE-2015-8575) - dccp: check sk for closed state in dccp_sendmsg (Alexey Kodanev) [Orabug: 28220402] (CVE-2017-8824) (CVE-2018-1130) - sctp: verify size of a new chunk in _sctp_make_chunk (Alexey Kodanev) [Orabug: 28240075] (CVE-2018-5803) - mm/mempolicy.c: fix error handling in set_mempolicy and mbind. (Chris Salls) [Orabug: 28242478] (CVE-2017-7616) - xfrm: policy: check policy direction value (Vladis Dronov) [Orabug: 28264121] (CVE-2017-11600) (CVE-2017-11600) - x86/fpu: Make eager FPU default (Mihai Carabas) [Orabug: 28156176] (CVE-2018-3665) - KVM: Fix stack-out-of-bounds read in write_mmio (Wanpeng Li) [Orabug: 27951287] (CVE-2017-17741) (CVE-2017-17741) - xfs: set format back to extents if xfs_bmap_extents_to_btree (Eric Sandeen) [Orabug: 27989498] (CVE-2018-10323) - Bluetooth: Prevent stack info leak from the EFS element. (Ben Seri) [Orabug: 28030520] (CVE-2017-1000410) (CVE-2017-1000410) - ALSA: hrtimer: Fix stall by hrtimer_cancel (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2549) - ALSA: timer: Harden slave timer list handling (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2547) (CVE-2016-2548) - ALSA: timer: Fix double unlink of active_list (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2545) - ALSA: seq: Fix missing NULL check at remove_events ioctl (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2543) - ALSA: seq: Fix race at timer setup and close (Takashi Iwai) [Orabug: 28058229] (CVE-2016-2544) - ALSA: usb-audio: avoid freeing umidi object twice (Andrey Konovalov) [Orabug: 28058229] (CVE-2016-2384) - perf/hwbp: Simplify the perf-hwbp code, fix documentation (Linus Torvalds) [Orabug: 27947608] (CVE-2018-1000199) - Revert last seen 2020-06-01 modified 2020-06-02 plugin id 111022 published 2018-07-12 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111022 title OracleVM 3.3 : Unbreakable / etc (OVMSA-2018-0237) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-762.NASL description The openSUSE Leap 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418) - CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924) - CVE-2018-9385: Prevent overread of the last seen 2020-06-05 modified 2018-07-30 plugin id 111414 published 2018-07-30 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111414 title openSUSE Security Update : the Linux Kernel (openSUSE-2018-762) (Spectre) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2019-0641.NASL description An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: net/rxrpc: overflow in decoding of krb5 principal (CVE-2017-7482) * kernel: Missing length check of payload in net/sctp/ sm_make_chunk.c:_sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: use-after-free in ntfs_read_locked_inode in the ntfs.ko (CVE-2018-12929) * kernel: stack-based out-of-bounds write in ntfs_end_buffer_async_read in the ntfs.ko (CVE-2018-12930) * kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko (CVE-2018-12931) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es) : * Remove the NTFS module from the MRG 2.5.x realtime kernel (BZ#1674523) * update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1674935) Users of kernel-rt are advised to upgrade to these updated packages, which fix these bugs. last seen 2020-06-01 modified 2020-06-02 plugin id 123432 published 2019-03-28 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123432 title RHEL 6 : MRG (RHSA-2019:0641) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-1854.NASL description From Red Hat Security Advisory 2018:1854 : An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor last seen 2020-06-01 modified 2020-06-02 plugin id 110701 published 2018-06-27 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110701 title Oracle Linux 6 : kernel (ELSA-2018-1854) (Spectre) NASL family Scientific Linux Local Security Checks NASL id SL_20180619_KERNEL_ON_SL6_X.NASL description Security Fix(es) : - An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor last seen 2020-03-18 modified 2018-07-03 plugin id 110887 published 2018-07-03 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110887 title Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20180619) (Spectre) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2366-1.NASL description The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2016-8405: An information disclosure vulnerability in kernel components including the ION subsystem, Binder, USB driver and networking subsystem could enable a local malicious application to access data outside of its permission levels. (bnc#1099942). - CVE-2017-13305: A information disclosure vulnerability existed in the encrypted-keys handling. (bnc#1094353). - CVE-2018-1000204: A malformed SG_IO ioctl issued for a SCSI device could lead to a local kernel information leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files. (bnc#1096728). - CVE-2018-1068: A flaw was found in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107). - CVE-2018-1130: A NULL pointer dereference in dccp_write_xmit() function in net/dccp/output.c allowed a local user to cause a denial of service by a number of certain crafted system calls (bnc#1092904). - CVE-2018-12233: In the ea_get function in fs/jfs/xattr.c a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. A kmalloc call is incorrect, leading to slab-out-of-bounds in jfs_xattr (bnc#1097234). - CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924). - CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c kernel could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 1100418). - CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081). - CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343). - CVE-2018-5803: An error in the last seen 2020-06-01 modified 2020-06-02 plugin id 111833 published 2018-08-17 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111833 title SUSE SLES11 Security Update : kernel (SUSE-SU-2018:2366-1) (Foreshadow) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2018-993.NASL description Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service : An error in the last seen 2020-06-01 modified 2020-06-02 plugin id 109183 published 2018-04-20 reporter This script is Copyright (C) 2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/109183 title Amazon Linux AMI : kernel (ALAS-2018-993) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2092-1.NASL description The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes. The following new feature was added : - NVDIMM memory error notification (ACPI 6.2) The following security bugs were fixed : - CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418) - CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924) - CVE-2018-9385: Prevent overread of the last seen 2020-03-21 modified 2019-01-02 plugin id 120067 published 2019-01-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120067 title SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2018:2092-1) (Spectre) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-1854.NASL description An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor last seen 2020-06-01 modified 2020-06-02 plugin id 110645 published 2018-06-22 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110645 title CentOS 6 : kernel (CESA-2018:1854) (Spectre) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1260.NASL description According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 117569 published 2018-09-18 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/117569 title EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1260) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2018-035.NASL description According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability : - It was found that _sctp_make_chunk() function did not check if the chunk length for INIT and INIT_ACK packets was within the allowed limits. A local attacker could exploit this to trigger a kernel crash. Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110232 published 2018-05-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110232 title Virtuozzo 7 : readykernel-patch (VZA-2018-035) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-1854.NASL description An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor last seen 2020-06-01 modified 2020-06-02 plugin id 110600 published 2018-06-19 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110600 title RHEL 6 : kernel (RHSA-2018:1854) (Spectre) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3697-2.NASL description It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) Jann Horn discovered that the 32 bit adjtimex() syscall implementation for 64 bit Linux kernels did not properly initialize memory returned to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-11508) Wang Qize discovered that an information disclosure vulnerability existed in the SMBus driver for ACPI Embedded Controllers in the Linux kernel. A local attacker could use this to expose sensitive information (kernel pointer addresses). (CVE-2018-5750) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that an integer overflow error existed in the futex implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-6927) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110899 published 2018-07-03 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110899 title Ubuntu 16.04 LTS : linux-oem vulnerabilities (USN-3697-2) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-2948.NASL description An update for kernel-alt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-alt packages provide the Linux kernel version 4.x. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor last seen 2020-06-01 modified 2020-06-02 plugin id 118513 published 2018-10-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118513 title RHEL 7 : kernel-alt (RHSA-2018:2948) (Spectre) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3654-2.NASL description USN-3654-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639) Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975) It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193) It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222) It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065) It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068) It was discovered that a NULL pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757) It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995) Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781) Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110049 published 2018-05-23 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110049 title Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3654-2) (Spectre) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2018-036.NASL description According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability : - It was found that _sctp_make_chunk() function did not check if the chunk length for INIT and INIT_ACK packets was within the allowed limits. A local attacker could exploit this to trigger a kernel crash. Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 110233 published 2018-05-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110233 title Virtuozzo 7 : readykernel-patch (VZA-2018-036) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-3083.NASL description An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/ posix-timers.c (CVE-2017-18344) * kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781) * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405) * kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830) * kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861) * kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661) * kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial of service (CVE-2017-17805) * kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208) * kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120) * kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130) * kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344) * kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: buffer overflow in drivers/net/wireless/ath/wil6210/ wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848) * kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878) * kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026) * kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913) * kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232) * kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092) * kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094) * kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118) * kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740) * kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/ libsas/sas_expander.c (CVE-2018-7757) * kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322) * kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879) * kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881) * kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883) * kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940) Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391; Trend Micro Zero Day Initiative for reporting CVE-2018-10902; Qualys Research Labs for reporting CVE-2018-1120; Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130; and Wen Xu for reporting CVE-2018-1092 and CVE-2018-1094. last seen 2020-06-01 modified 2020-06-02 plugin id 118990 published 2018-11-16 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118990 title CentOS 7 : kernel (CESA-2018:3083) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2332-1.NASL description The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081). - CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system. (bnc#1089343). - CVE-2018-1000204: A malformed SG_IO ioctl issued for a SCSI device could lead to a local kernel information leak manifesting in up to approximately 1000 memory pages copied to the userspace. The problem has limited scope as non-privileged users usually have no permissions to access SCSI device files. (bnc#1096728). - CVE-2018-13053: The alarm_timer_nsleep function in kernel/time/alarmtimer.c had an integer overflow via a large relative timeout because ktime_add_safe is not used (bnc#1099924). - CVE-2018-13406: An integer overflow in the uvesafb_setcmap function in drivers/video/fbdev/uvesafb.c could result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1098016 bnc#1100418). - CVE-2016-8405: An information disclosure vulnerability in kernel components including the ION subsystem, Binder, USB driver and networking subsystem could enable a local malicious application to access data outside of its permission levels. (bnc#1099942). - CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480). - CVE-2018-12233: In the ea_get function in fs/jfs/xattr.c a memory corruption bug in JFS can be triggered by calling setxattr twice with two different extended attribute names on the same file. This vulnerability can be triggered by an unprivileged user with the ability to create files and execute programs. (bnc#1097234). - CVE-2017-13305: A information disclosure vulnerability in the Upstream kernel encrypted-keys. (bnc#1094353). - CVE-2018-1130: A NULL pointer dereference in dccp_write_xmit() function in net/dccp/output.c allowed a local user to cause a denial of service by a number of certain crafted system calls (bnc#1092904). - CVE-2018-1068: A flaw was found in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107). - CVE-2018-5803: An error in the last seen 2020-06-01 modified 2020-06-02 plugin id 111782 published 2018-08-16 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111782 title SUSE SLES11 Security Update : kernel (SUSE-SU-2018:2332-1) (Foreshadow) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1432.NASL description According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the last seen 2020-05-06 modified 2018-12-28 plugin id 119921 published 2018-12-28 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119921 title EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1432) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2018-0236.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - block: update integrity interval after queue limits change (Ritika Srivastava) [Orabug: 27586756] - dccp: check sk for closed state in dccp_sendmsg (Alexey Kodanev) [Orabug: 28001529] (CVE-2017-8824) (CVE-2018-1130) - net/rds: Implement ARP flushing correctly (Hå kon Bugge) [Orabug: 28219857] - net/rds: Fix incorrect bigger vs. smaller IP address check (Hå kon Bugge) [Orabug: 28236599] - ocfs2: Fix locking for res->tracking and dlm->tracking_list (Ashish Samant) [Orabug: 28256391] - xfrm: policy: check policy direction value (Vladis Dronov) [Orabug: 28256487] (CVE-2017-11600) (CVE-2017-11600) - add kernel param to pre-allocate NICs (Brian Maly) [Orabug: 27870400] - mm/mempolicy.c: fix error handling in set_mempolicy and mbind. (Chris Salls) [Orabug: 28242475] (CVE-2017-7616) - xhci: Fix USB3 NULL pointer dereference at logical disconnect. (Mathias Nyman) [Orabug: 27426023] - mlx4_core: restore optimal ICM memory allocation (Eric Dumazet) - mlx4_core: allocate ICM memory in page size chunks (Qing Huang) - kernel/signal.c: avoid undefined behaviour in kill_something_info When running kill(72057458746458112, 0) in userspace I hit the following issue. (mridula shastry) [Orabug: 28078687] (CVE-2018-10124) - rds: tcp: compute m_ack_seq as offset from ->write_seq (Sowmini Varadhan) [Orabug: 28085214] - ext4: fix bitmap position validation (Lukas Czerner) [Orabug: 28167032] - net/rds: Fix bug in failover_group parsing (Hå kon Bugge) [Orabug: 28198749] - sctp: verify size of a new chunk in _sctp_make_chunk (Alexey Kodanev) [Orabug: 28240074] (CVE-2018-5803) - netfilter: xt_TCPMSS: add more sanity tests on tcph->doff (Eric Dumazet) [Orabug: 27896802] (CVE-2017-18017) - kernel/exit.c: avoid undefined behaviour when calling wait4 wait4(-2147483648, 0x20, 0, 0xdd0000) triggers: UBSAN: Undefined behaviour in kernel/exit.c:1651:9 (mridula shastry) [Orabug: 28049778] (CVE-2018-10087) - x86/bugs/module: Provide retpoline_modules_only parameter to fail non-retpoline modules (Konrad Rzeszutek Wilk) [Orabug: 28071992] last seen 2020-06-01 modified 2020-06-02 plugin id 111021 published 2018-07-12 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111021 title OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0236) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4188.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2017-5715 Multiple researchers have discovered a vulnerability in various processors supporting speculative execution, enabling an attacker controlling an unprivileged process to read memory from arbitrary addresses, including from the kernel and all other processes running on the system. This specific attack has been named Spectre variant 2 (branch target injection) and is mitigated for the x86 architecture (amd64 and i386) by using the last seen 2020-06-01 modified 2020-06-02 plugin id 109518 published 2018-05-02 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109518 title Debian DSA-4188-1 : linux - security update (Spectre) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1539.NASL description According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions past bounds check. The flaw relies on the presence of a precisely-defined instruction sequence in the privileged code and the fact that memory writes occur to an address which depends on the untrusted value. Such writes cause an update into the microprocessor last seen 2020-06-01 modified 2020-06-02 plugin id 124992 published 2019-05-14 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124992 title EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1539) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-536.NASL description The openSUSE Leap 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2018-13406: An integer overflow in the uvesafb_setcmap function could have result in local attackers being able to crash the kernel or potentially elevate privileges because kmalloc_array is not used (bnc#1100418) - CVE-2018-13053: The alarm_timer_nsleep function had an integer overflow via a large relative timeout because ktime_add_safe was not used (bnc#1099924) - CVE-2018-9385: Prevent overread of the last seen 2020-06-01 modified 2020-06-02 plugin id 123226 published 2019-03-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123226 title openSUSE Security Update : the Linux Kernel (openSUSE-2019-536) (Spectre) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0074_KERNEL-RT.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel-rt packages installed that are affected by multiple vulnerabilities: - Integer overflow in the aio_setup_single_vector function in fs/aio.c in the Linux kernel 4.0 allows local users to cause a denial of service or possibly have unspecified other impact via a large AIO iovec. NOTE: this vulnerability exists because of a CVE-2012-6701 regression. (CVE-2015-8830) - A weakness was found in the Linux ASLR implementation. Any user able to running 32-bit applications in a x86 machine can disable ASLR by setting the RLIMIT_STACK resource to unlimited. (CVE-2016-3672) - The xc2028_set_config function in drivers/media/tuners/tuner-xc2028.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) via vectors involving omission of the firmware name from a certain data structure. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. (CVE-2016-7913) - Use-after-free vulnerability in the snd_pcm_info() function in the ALSA subsystem in the Linux kernel allows attackers to induce a kernel memory corruption and possibly crash or lock up a system. Due to the nature of the flaw, a privilege escalation cannot be fully ruled out, although we believe it is unlikely. (CVE-2017-0861) - A reachable assertion failure flaw was found in the Linux kernel built with KVM virtualisation(CONFIG_KVM) support with Virtual Function I/O feature (CONFIG_VFIO) enabled. This failure could occur if a malicious guest device sent a virtual interrupt (guest IRQ) with a larger (>1024) index value. (CVE-2017-1000252) - Linux kernel Virtualization Module (CONFIG_KVM) for the Intel processor family (CONFIG_KVM_INTEL) is vulnerable to a DoS issue. It could occur if a guest was to flood the I/O port 0x80 with write requests. A guest user could use this flaw to crash the host kernel resulting in DoS. (CVE-2017-1000407) - A flaw was found in the processing of incoming L2CAP bluetooth commands. Uninitialized stack variables can be sent to an attacker leaking data in kernel address space. (CVE-2017-1000410) - A race condition was found in the Linux kernel before version 4.11-rc1 in last seen 2020-06-01 modified 2020-06-02 plugin id 127281 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127281 title NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0074) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0152_KERNEL.NASL description The remote NewStart CGSL host, running version MAIN 4.05, has kernel packages installed that are affected by multiple vulnerabilities: - It was found that AIO interface didn last seen 2020-06-01 modified 2020-06-02 plugin id 127425 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127425 title NewStart CGSL MAIN 4.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0152) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1452.NASL description According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.(CVE-2019-19447) - This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.(CVE-2019-10220) - ** DISPUTED ** In kernel/compat.c in the Linux kernel before 3.17, as used in Google Chrome OS and other products, there is a possible out-of-bounds read. restart_syscall uses uninitialized data when restarting compat_sys_nanosleep. NOTE: this is disputed because the code path is unreachable.(CVE-2014-3180) - In the Linux kernel before 5.0.6, there is a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e(CVE-2019-20054) - pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5.(CVE-2019-19965) last seen 2020-04-30 modified 2020-04-16 plugin id 135614 published 2020-04-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135614 title EulerOS Virtualization 3.0.2.2 : kernel (EulerOS-SA-2020-1452)
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References
- https://www.spinics.net/lists/netdev/msg482523.html
- https://www.spinics.net/lists/linux-sctp/msg07036.html
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/
- https://secuniaresearch.flexerasoftware.com/advisories/81331/
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51
- https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102
- https://www.debian.org/security/2018/dsa-4188
- https://www.debian.org/security/2018/dsa-4187
- https://usn.ubuntu.com/3656-1/
- https://usn.ubuntu.com/3654-2/
- https://usn.ubuntu.com/3654-1/
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- https://access.redhat.com/errata/RHSA-2018:1854
- https://usn.ubuntu.com/3698-2/
- https://usn.ubuntu.com/3697-2/
- https://usn.ubuntu.com/3697-1/
- https://usn.ubuntu.com/3698-1/
- https://access.redhat.com/errata/RHSA-2018:3096
- https://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:2948
- https://access.redhat.com/errata/RHSA-2019:0641