Vulnerabilities > CVE-2018-1000204
Attack vector
NETWORK Attack complexity
HIGH Privileges required
LOW Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don't usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it "virtually impossible to exploit.
Vulnerable Configurations
Nessus
NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4301.NASL description Description of changes: [2.6.39-400.304.1.el6uek] - mnt: Prevent pivot_root from creating a loop in the mount tree (Eric W. Biederman) [Orabug: 26575709] {CVE-2014-7970} {CVE-2014-7970} - vfs: more mnt_parent cleanups (Al Viro) [Orabug: 26575709] {CVE-2014-7970} - vfs: new internal helper: mnt_has_parent(mnt) (Al Viro) [Orabug: 26575709] {CVE-2014-7970} - ALSA: seq: Fix racy pool initializations (Takashi Iwai) [Orabug: 28459730] {CVE-2018-7566} - xen-netback: calculate full_coalesce before the pre-estimation of ring buffer slots to consume (Dongli Zhang) [Orabug: 28818690] - scsi: sg: allocate with __GFP_ZERO in sg_build_indirect() (Alexander Potapenko) [Orabug: 28892695] {CVE-2018-1000204} - KVM: MTRR: remove MSR 0x2f8 (Andy Honig) [Orabug: 28901711] {CVE-2016-3713} {CVE-2016-3713} - cdrom: fix improper type cast, which can leat to information leak. (Young_X) [Orabug: 28929788] {CVE-2018-16658} {CVE-2018-10940} {CVE-2018-18710} - udf: Check component length before reading it (Jan Kara) [Orabug: 28941923] {CVE-2014-9728} - udf: Verify symlink size before loading it (Shan Hai) [Orabug: 28941923] {CVE-2014-9728} - udf: Verify i_size when loading inode (Shan Hai) [Orabug: 28941923] {CVE-2014-9728} - floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl (Andy Whitcroft) [Orabug: 28956549] {CVE-2018-7755} {CVE-2018-7755} - crypto: salsa20 - fix blkcipher_walk API usage (Eric Biggers) [Orabug: 28976586] {CVE-2017-17805} - crypto: hmac - require that the underlying hash algorithm is unkeyed (Eric Biggers) [Orabug: 28976655] {CVE-2017-17806} last seen 2020-04-30 modified 2018-12-11 plugin id 119567 published 2018-12-11 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/119567 title Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2018-4301) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1280.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 before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.(CVE-2017-18270) - ** DISPUTED ** Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3 c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don last seen 2020-06-01 modified 2020-06-02 plugin id 117586 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/117586 title EulerOS Virtualization 2.5.1 : kernel (EulerOS-SA-2018-1280) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-1407.NASL description The openSUSE Leap 42.3 kernel was updated to 4.4.179 to receive various security and bugfixes. Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331) - CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS) - CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS) - CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS) - CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel. For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736 The following security bugs were fixed : - CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations can be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480). - CVE-2018-10853: A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest (bnc#1097104). - CVE-2018-15594: arch/x86/kernel/paravirt.c in the Linux kernel mishandled certain indirect calls, which made it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests (bnc#1105348 1119974). - CVE-2018-17972: An issue was discovered in the proc_pid_stack function in fs/proc/base.c that did not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents (bnc#1110785). - CVE-2018-1000204: Prevent infoleak caused by incorrect handling of the SG_IO ioctl (bsc#1096728) - CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c had multiple race conditions (bnc#1133188). It has been disabled. - CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c, a race condition leading to a use-after-free was fixed, related to net namespace cleanup (bnc#1134537). - CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c allowed a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not end with a last seen 2020-06-01 modified 2020-06-02 plugin id 125303 published 2019-05-21 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/125303 title openSUSE Security Update : the Linux Kernel (openSUSE-2019-1407) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) 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 Ubuntu Local Security Checks NASL id UBUNTU_USN-3696-2.NASL description USN-3696-1 fixed vulnerabilities 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. It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18255) Wei Fang discovered an integer overflow in the F2FS filesystem implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2017-18257) It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204) It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10087) It was discovered that the kill() system call implementation in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10124) 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) Jakub Jirasek discovered that multiple use-after-errors existed in the USB/IP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-5814) 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) Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling early termination of ACPI table loading. A local attacker could use this to expose sensitive informal (kernel address locations). (CVE-2017-13695) It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-10021). 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 110897 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/110897 title Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3696-2) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1587.NASL description According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A malformed SG_IO ioctl issued for a SCSI device in the Linux kernel leads to a local kernel data 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.(CVE-2018-1000204) - A flaw in the load_elf_binary() function in the Linux kernel allows a local attacker to leak the base address of .text and stack sections for setuid binaries and bypass ASLR because install_exec_creds() is called too late in this function.(CVE-2019-11190) - A flaw was found in the Linux kernel in the hid_debug_events_read() function in the drivers/hid/hid-debug.c file. A lack of the certain checks may allow a privileged user ( last seen 2020-05-06 modified 2019-05-29 plugin id 125514 published 2019-05-29 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/125514 title EulerOS 2.0 SP3 : kernel (EulerOS-SA-2019-1587) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3754-1.NASL description Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service (system crash). (CVE-2016-10208) It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses). (CVE-2017-11472) It was discovered that a buffer overflow existed in the ACPI table parsing implementation in the Linux kernel. A local attacker could use this to construct a malicious ACPI table that, when loaded, caused a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11473) It was discovered that the generic SCSI driver in the Linux kernel did not properly initialize data returned to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-14991) It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15649) Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for an error condition. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16526) Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16527) Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16529) Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB interface association descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16531) Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16532) Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16533) Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB BOS metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16535) Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not properly validate interface descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16536) Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16537) It was discovered that the DM04/QQBOX USB driver in the Linux kernel did not properly handle device attachment and warm-start. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16538) Andrey Konovalov discovered an out-of-bounds read in the GTCO digitizer USB driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16643) Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16644) Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver in the Linux kernel did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16645) Andrey Konovalov discovered that the QMI WWAN USB driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16650) It was discovered that the USB Virtual Host Controller Interface (VHCI) driver in the Linux kernel contained an information disclosure vulnerability. A physically proximate attacker could use this to expose sensitive information (kernel memory). (CVE-2017-16911) It was discovered that the USB over IP implementation in the Linux kernel did not validate endpoint numbers. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16912) It was discovered that the USB over IP implementation in the Linux kernel did not properly validate CMD_SUBMIT packets. A remote attacker could use this to cause a denial of service (excessive memory consumption). (CVE-2017-16913) It was discovered that the USB over IP implementation in the Linux kernel contained a NULL pointer dereference error. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16914) It was discovered that the core USB subsystem in the Linux kernel did not validate the number of configurations and interfaces in a device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-17558) It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18255) It was discovered that the keyring subsystem in the Linux kernel did not properly prevent a user from creating keyrings for other users. A local attacker could use this cause a denial of service or expose sensitive information. (CVE-2017-18270) Andy Lutomirski and Willy Tarreau discovered that the KVM implementation in the Linux kernel did not properly emulate instructions on the SS segment register. A local attacker in a guest virtual machine could use this to cause a denial of service (guest OS crash) or possibly gain administrative privileges in the guest OS. (CVE-2017-2583) Dmitry Vyukov discovered that the KVM implementation in the Linux kernel improperly emulated certain instructions. A local attacker could use this to obtain sensitive information (kernel memory). (CVE-2017-2584) It was discovered that the KLSI KL5KUSB105 serial-to-USB device driver in the Linux kernel did not properly initialize memory related to logging. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-5549) Andrey Konovalov discovered an out-of-bounds access in the IPv6 Generic Routing Encapsulation (GRE) tunneling implementation in the Linux kernel. An attacker could use this to possibly expose sensitive information. (CVE-2017-5897) Andrey Konovalov discovered that the LLC subsytem in the Linux kernel did not properly set up a destructor in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-6345) Dmitry Vyukov discovered race conditions in the Infrared (IrDA) subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (deadlock). (CVE-2017-6348) Andy Lutomirski discovered that the KVM implementation in the Linux kernel was vulnerable to a debug exception error when single-stepping through a syscall. A local attacker in a non-Linux guest vm could possibly use this to gain administrative privileges in the guest vm. (CVE-2017-7518) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-7645) Pengfei Wang discovered that a race condition existed in the NXP SAA7164 TV Decoder driver for the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-8831) Pengfei Wang discovered that the Turtle Beach MultiSound audio device driver in the Linux kernel contained race conditions when fetching from the ring-buffer. A local attacker could use this to cause a denial of service (infinite loop). (CVE-2017-9984, CVE-2017-9985) It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10087) It was discovered that the kill() system call implementation in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10124) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10323) Zhong Jiang discovered that a use-after-free vulnerability existed in the NUMA memory policy implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10675) Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10877) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-data information consistent in some situations. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service (system crash) when mounted. (CVE-2018-1092) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service (system crash) when mounted. (CVE-2018-1093) It was discovered that the cdrom driver in the Linux kernel contained an incorrect bounds check. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-10940) Shankara Pailoor discovered that the JFS filesystem implementation in the Linux kernel contained a buffer overflow when handling extended attributes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-12233) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly handle an error condition with a corrupted xfs image. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13094) It was discovered that the Linux kernel did not properly handle setgid file creation when performed by a non-member of the group. A local attacker could use this to gain elevated privileges. (CVE-2018-13405) Silvio Cesare discovered that the generic VESA frame buffer driver in the Linux kernel contained an integer overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-13406) Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2017-2671) It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204) It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-10021). 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 112113 published 2018-08-24 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/112113 title Ubuntu 14.04 LTS : linux vulnerabilities (USN-3754-1) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1423.NASL description Linux 4.9 has been packaged for Debian 8 as linux-4.9. This provides a supported upgrade path for systems that currently use kernel packages from the last seen 2020-06-01 modified 2020-06-02 plugin id 111165 published 2018-07-20 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/111165 title Debian DLA-1423-1 : linux-4.9 new package (Spectre) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3752-2.NASL description USN-3752-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that, when attempting to handle an out-of-memory situation, a NULL pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1000200) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10323) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate xattr information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10840) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-data information consistent in some situations. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service (system crash) when mounted. (CVE-2018-1093) Jann Horn discovered that the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 112110 published 2018-08-24 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/112110 title Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3752-2) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3696-1.NASL description It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18255) Wei Fang discovered an integer overflow in the F2FS filesystem implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2017-18257) It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204) It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10087) It was discovered that the kill() system call implementation in the Linux kernel did not properly validate its arguments in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2018-10124) 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) Jakub Jirasek discovered that multiple use-after-errors existed in the USB/IP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-5814) 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) Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling early termination of ACPI table loading. A local attacker could use this to expose sensitive informal (kernel address locations). (CVE-2017-13695) It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-10021). 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 110896 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/110896 title Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3696-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4304.NASL description Description of changes: [4.14.35-1818.5.4.el7uek] - RDS: NULL pointer dereference in rds_atomic_free_op (Mohamed Ghannam) [Orabug: 28020694] {CVE-2018-5333} - x86/speculation: Make enhanced IBRS the default spectre v2 mitigation (Alejandro Jimenez) [Orabug: 28474853] - x86/speculation: Enable enhanced IBRS usage (Alejandro Jimenez) [Orabug: 28474853] - x86/speculation: functions for supporting enhanced IBRS (Alejandro Jimenez) [Orabug: 28474853] - KVM: x86: Expose CLDEMOTE CPU feature to guest VM (Jingqi Liu) [Orabug: 28938290] - x86/cpufeatures: Enumerate cldemote instruction (Fenghua Yu) [Orabug: 28938290] - libiscsi: Fix NULL pointer dereference in iscsi_eh_session_reset (Fred Herard) [Orabug: 28946206] - wil6210: missing length check in wmi_set_ie (Lior David) [Orabug: 28951267] {CVE-2018-5848} - floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl (Andy Whitcroft) [Orabug: 28956546] {CVE-2018-7755} {CVE-2018-7755} [4.14.35-1818.5.3.el7uek] - hugetlbfs: use truncate mutex to prevent pmd sharing race (Mike Kravetz) [Orabug: 28896279] - xfs: enhance dinode verifier (Eric Sandeen) [Orabug: 28943579] {CVE-2018-10322} - xfs: move inode fork verifiers to xfs_dinode_verify (Darrick J. Wong) [Orabug: 28943579] {CVE-2018-10322} [4.14.35-1818.5.2.el7uek] - rds: crash at rds_ib_inc_copy_to_user+104 due to NULL ptr reference (Venkat Venkatsubra) [Orabug: 28748049] - kdump/vmcore: support encrypted old memory with SME enabled (Lianbo Jiang) [Orabug: 28796835] - amd_iommu: remap the device table of IOMMU with the memory encryption mask for kdump (Lianbo Jiang) [Orabug: 28796835] - kexec: allocate unencrypted control pages for kdump in case SME is enabled (Lianbo Jiang) [Orabug: 28796835] - x86/ioremap: add a function ioremap_encrypted() to remap kdump old memory (Lianbo Jiang) [Orabug: 28796835] - net/rds: Fix endless RNR situation (Venkat Venkatsubra) [Orabug: 28857013] - Btrfs: fix xattr loss after power failure (Filipe Manana) [Orabug: 28893942] - xen/balloon: Support xend-based toolstack (Boris Ostrovsky) [Orabug: 28901032] - Btrfs: fix file data corruption after cloning a range and fsync (Filipe Manana) [Orabug: 28905635] - xen-blkfront: fix kernel panic with negotiate_mq error path (Manjunath Patil) - cdrom: fix improper type cast, which can leat to information leak. (Young_X) [Orabug: 28929755] {CVE-2018-16658} {CVE-2018-10940} {CVE-2018-18710} - sched/fair: Use a recently used CPU as an idle candidate and the basis for SIS (Mel Gorman) [Orabug: 28940633] - sched/fair: Move select_task_rq_fair() slow-path into its own function (Brendan Jackman) [Orabug: 28940633] - certs: Add Oracle last seen 2020-04-30 modified 2018-12-13 plugin id 119638 published 2018-12-13 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/119638 title Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2018-4304) 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-3752-3.NASL description It was discovered that, when attempting to handle an out-of-memory situation, a NULL pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1000200) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10323) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate xattr information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10840) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-data information consistent in some situations. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service (system crash) when mounted. (CVE-2018-1093) Jann Horn discovered that the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 112189 published 2018-08-30 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/112189 title Ubuntu 16.04 LTS / 18.04 LTS : linux-azure, linux-oem, linux-gcp vulnerabilities (USN-3752-3) 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 Debian Local Security Checks NASL id DEBIAN_DLA-1422.NASL description The previous update to linux failed to build for the armhf (ARM EABI hard-float) architecture. This update corrects that. For all other architectures, there is no need to upgrade or reboot again. For reference, the relevant part of the original advisory text follows. 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 new microcoded features. This mitigation requires an update to the processor last seen 2020-06-01 modified 2020-06-02 plugin id 111082 published 2018-07-16 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/111082 title Debian DLA-1422-2 : linux security update (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 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 Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4288.NASL description Description of changes: [4.1.12-124.22.4.el7uek] - Revert commit 8bd274934987 ( last seen 2020-06-01 modified 2020-06-02 plugin id 119279 published 2018-11-29 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/119279 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4288) 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 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 Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-4300.NASL description Description of changes: kernel-uek [3.8.13-118.28.1.el7uek] - udf: Check component length before reading it (Jan Kara) [Orabug: 21193696] {CVE-2014-9728} - udf: Verify i_size when loading inode (Shan Hai) [Orabug: 21193696] {CVE-2014-9728} - intel_pstate: Fix overflow in busy_scaled due to long delay (mridula shastry) [Orabug: 28005134] - scsi: libsas: defer ata device eh commands to libata (Jason Yan) [Orabug: 28459689] {CVE-2018-10021} - nfsd: silence sparse warning about accessing credentials (Jeff Layton) [Orabug: 28824742] {CVE-2017-13168} - scsi: sg: mitigate read/write abuse (Jann Horn) [Orabug: 28824742] {CVE-2017-13168} - scsi: sg: allocate with __GFP_ZERO in sg_build_indirect() (Alexander Potapenko) [Orabug: 28892683] {CVE-2018-1000204} - ALSA: rawmidi: Change resized buffers atomically (Takashi Iwai) [Orabug: 28898650] {CVE-2018-10902} - KVM: MTRR: remove MSR 0x2f8 (Andy Honig) [Orabug: 28901657] {CVE-2016-3713} {CVE-2016-3713} - cdrom: fix improper type cast, which can leat to information leak. (Young_X) [Orabug: 28929777] {CVE-2018-16658} {CVE-2018-10940} {CVE-2018-18710} - floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl (Andy Whitcroft) {CVE-2018-7755} {CVE-2018-7755} - crypto: salsa20 - fix blkcipher_walk API usage (Eric Biggers) [Orabug: 28976585] {CVE-2017-17805} - crypto: hmac - require that the underlying hash algorithm is unkeyed (Eric Biggers) [Orabug: 28976654] {CVE-2017-17806} last seen 2020-05-15 modified 2018-12-10 plugin id 119535 published 2018-12-10 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/119535 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4300) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3752-1.NASL description It was discovered that, when attempting to handle an out-of-memory situation, a NULL pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1000200) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10323) Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate xattr information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10840) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-data information consistent in some situations. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881) Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem that caused a denial of service (system crash) when mounted. (CVE-2018-1093) Jann Horn discovered that the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 112109 published 2018-08-24 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/112109 title Ubuntu 18.04 LTS : linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities (USN-3752-1) 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 OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2018-0284.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - Revert commit 8bd274934987 ( last seen 2020-06-01 modified 2020-06-02 plugin id 119292 published 2018-11-30 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/119292 title OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0284)
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References
- https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824
- http://www.openwall.com/lists/oss-security/2018/06/26/3
- https://usn.ubuntu.com/3696-2/
- https://usn.ubuntu.com/3696-1/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
- https://usn.ubuntu.com/3754-1/
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3752-1/
- https://usn.ubuntu.com/3752-3/
- https://access.redhat.com/errata/RHSA-2018:2948
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html