Vulnerabilities > CVE-2005-2098 - Local Denial of Service vulnerability in Linux Kernel Session Keyring Allocation
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL Summary
The KEYCTL_JOIN_SESSION_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a denial of service (semaphore hang) via a new session keyring (1) with an empty name string, (2) with a long name string, (3) with the key quota reached, or (4) ENOMEM.
Vulnerable Configurations
Nessus
NASL family Mandriva Local Security Checks NASL id MANDRAKE_MDKSA-2005-220.NASL description Multiple vulnerabilities in the Linux 2.6 kernel have been discovered and corrected in this update: The kernel on x86_64 platforms does not use a guard page for the 47-bit address page to protect against an AMD K8 bug which allows a local user to cause a DoS (CVE-2005-1764). The KEYCTL_JOIN_SESSION_KEYRING operation in versions prior to 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a DoS (semaphore hang) via a new session keyring with an empty name string, a long name string, the key quota reached, or ENOMEM (CVE-2005-2098). Kernels prior to 2.6.12.5 do not properly destroy a keyring that is not instantiated properly, allowing a local user or remote attacker to cause a DoS (oops) via a keyring with a payload that is not empty (CVE-2005-2099). An array index overflow in the xfrm_sk_policy_insert function in xfrm_user.c allows local users to cause a DoS (oops or deadlock) and possibly execute arbitrary code (CVE-2005-2456). The zisofs driver in versions prior to 2.6.12.5 allows local users and remove attackers to cause a DoS (crash) via a crafted compressed ISO filesystem (CVE-2005-2457). inflate.c in the zlib routines in versions prior to 2.6.12.5 allow remove attackers to cause a DoS (crash) via a compressed file with 'improper tables' (CVE-2005-2458). The huft_build function in inflate.c in the zlib routines in versions prior to 2.6.12.5 returns the wrong value, allowing remote attackers to cause a DoS (crash) via a certain compressed file that leads to a NULL pointer dereference (CVE-2005-2459). A stack-based buffer overflow in the sendmsg function call in versions prior to 2.6.13.1 allow local users to execute arbitrary code by calling sendmsg and modifying the message contents in another thread (CVE-2005-2490). The raw_sendmsg function in versions prior to 2.6.13.1 allow local users to cause a DoS (change hardware state) or read from arbitrary memory via crafted input (CVE-2005-2492). A memory leak in the seq_file implementation in the SCSI procfs interface (sg.c) in 2.6.13 and earlier allows a local user to cause a DoS (memory consumption) via certain repeated reads from /proc/scsi/gs/devices file which is not properly handled when the next() interator returns NULL or an error (CVE-2005-2800). The ipt_recent module in versions prior to 2.6.12 when running on 64bit processors allows remote attackers to cause a DoS (kernel panic) via certain attacks such as SSH brute force (CVE-2005-2872). The ipt_recent module in versions prior to 2.6.12 does not properly perform certain tests when the jiffies value is greater than LONG_MAX, which can cause ipt_recent netfilter rules to block too early (CVE-2005-2873). Multiple vulnerabilities in versions prior to 2.6.13.2 allow local users to cause a DoS (oops from NULL dereference) via fput in a 32bit ioctl on 64-bit x86 systems or sockfd_put in the 32-bit routing_ioctl function on 64-bit systems (CVE-2005-3044). The sys_set_mempolicy function in mempolicy.c allows local users to cause a DoS via a negative first argument (CVE-2005-3053). Versions 2.6.8 to 2.6.14-rc2 allow local users to cause a DoS (oops) via a userspace process that issues a USB Request Block (URB) to a USB device and terminates before the URB is finished, which leads to a stale pointer reference (CVE-2005-3055). drm.c in version 2.6.13 and earlier creates a debug file in sysfs with world-readable and world-writable permissions, allowing local users to enable DRM debugging and obtain sensitive information (CVE-2005-3179). The Orinoco driver in 2.6.13 and earlier does not properly clear memory from a previously used packet whose length is increased, allowing remote attackers to obtain sensitive information (CVE-2005-3180). Kernels 2.6.13 and earlier, when CONFIG_AUDITSYSCALL is enabled, use an incorrect function to free names_cache memory, preventing the memory from being tracked by AUDITSYSCALL code and leading to a memory leak (CVE-2005-3181). The VT implementation in version 2.6.12 allows local users to use certain IOCTLs on terminals of other users and gain privileges (CVE-2005-3257). Exec does not properly clear posix-timers in multi-threaded environments, which result in a resource leak and could allow a large number of multiple local users to cause a DoS by using more posix- timers than specified by the quota for a single user (CVE-2005-3271). The rose_rt_ioctl function rose_route.c in versions prior to 2.6.12 does not properly verify the ndigis argument for a new route, allowing an attacker to trigger array out-of-bounds errors with a large number of digipeats (CVE-2005-3273). A race condition in ip_vs_conn_flush in versions prior to 2.6.13, when running on SMP systems, allows local users to cause a DoS (NULL dereference) by causing a connection timer to expire while the connection table is being flushed before the appropriate lock is acquired (CVE-2005-3274). The NAT code in versions prior to 2.6.13 incorrectly declares a variable to be static, allowing remote attackers to cause a DoS (memory corruption) by causing two packets for the same protocol to be NATed at the same time (CVE-2005-3275). The sys_get_thread_area function in process.c in versions prior to 2.6.12.4 and 2.6.13 does not clear a data structure before copying it to userspace, which may allow a user process to obtain sensitive information (CVE-2005-3276). The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels. To update your kernel, please follow the directions located at: http://www.mandriva.com/en/security/kernelupdate last seen 2017-10-29 modified 2014-08-22 plugin id 20451 published 2006-01-15 reporter Tenable source https://www.tenable.com/plugins/index.php?view=single&id=20451 title MDKSA-2005:220 : kernel NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2005-514.NASL description Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 4. This is the second regular update. This update has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. This is the second regular kernel update to Red Hat Enterprise Linux 4. New features introduced in this update include: - Audit support - systemtap - kprobes, relayfs - Keyring support - iSCSI Initiator - iscsi_sfnet 4:0.1.11-1 - Device mapper multipath support - Intel dual core support - esb2 chipset support - Increased exec-shield coverage - Dirty page tracking for HA systems - Diskdump -- allow partial diskdumps and directing to swap There were several bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 4. The following security bugs were fixed in this update, detailed below with corresponding CAN names available from the Common Vulnerabilities and Exposures project (cve.mitre.org) : - flaws in ptrace() syscall handling on 64-bit systems that allowed a local user to cause a denial of service (crash) (CVE-2005-0756, CVE-2005-1761, CVE-2005-1762, CVE-2005-1763) - flaws in IPSEC network handling that allowed a local user to cause a denial of service or potentially gain privileges (CVE-2005-2456, CVE-2005-2555) - a flaw in sendmsg() syscall handling on 64-bit systems that allowed a local user to cause a denial of service or potentially gain privileges (CVE-2005-2490) - a flaw in sendmsg() syscall handling that allowed a local user to cause a denial of service by altering hardware state (CVE-2005-2492) - a flaw that prevented the topdown allocator from allocating mmap areas all the way down to address zero (CVE-2005-1265) - flaws dealing with keyrings that could cause a local denial of service (CVE-2005-2098, CVE-2005-2099) - a flaw in the 4GB split patch that could allow a local denial of service (CVE-2005-2100) - a xattr sharing bug in the ext2 and ext3 file systems that could cause default ACLs to disappear (CVE-2005-2801) - a flaw in the ipt_recent module on 64-bit architectures which could allow a remote denial of service (CVE-2005-2872) The following device drivers have been upgraded to new versions : qla2100 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2200 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2300 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2322 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2xxx --------- 8.00.00b21-k to 8.01.00b5-rh2 qla6312 --------- 8.00.00b21-k to 8.01.00b5-rh2 megaraid_mbox --- 2.20.4.5 to 2.20.4.6 megaraid_mm ----- 2.20.2.5 to 2.20.2.6 lpfc ------------ 0:8.0.16.6_x2 to 0:8.0.16.17 cciss ----------- 2.6.4 to 2.6.6 ipw2100 --------- 1.0.3 to 1.1.0 tg3 ------------- 3.22-rh to 3.27-rh e100 ------------ 3.3.6-k2-NAPI to 3.4.8-k2-NAPI e1000 ----------- 5.6.10.1-k2-NAPI to 6.0.54-k2-NAPI 3c59x ----------- LK1.1.19 mptbase --------- 3.01.16 to 3.02.18 ixgb ------------ 1.0.66 to 1.0.95-k2-NAPI libata ---------- 1.10 to 1.11 sata_via -------- 1.0 to 1.1 sata_ahci ------- 1.00 to 1.01 sata_qstor ------ 0.04 sata_sil -------- 0.8 to 0.9 sata_svw -------- 1.05 to 1.06 s390: crypto ---- 1.31 to 1.57 s390: zfcp ------ s390: CTC-MPC --- s390: dasd ------- s390: cio ------- s390: qeth ------ All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. last seen 2020-06-01 modified 2020-06-02 plugin id 21943 published 2006-07-05 reporter This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/21943 title CentOS 4 : kernel (CESA-2005:514) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-169-1.NASL description David Howells discovered a local Denial of Service vulnerability in the key session joining function. Under certain user-triggerable conditions, a semaphore was not released properly, which caused processes which also attempted to join a key session to hang forever. This only affects Ubuntu 5.04 (Hoary Hedgehog). (CAN-2005-2098) David Howells discovered a local Denial of Service vulnerability in the keyring allocator. A local attacker could exploit this to crash the kernel by attempting to add a specially crafted invalid keyring. This only affects Ubuntu 5.04 (Hoary Hedgehog). (CAN-2005-2099) Balazs Scheidler discovered a local Denial of Service vulnerability in the xfrm_compile_policy() function. By calling setsockopt() with an invalid xfrm_user policy message, a local attacker could cause the kernel to write to an array beyond its boundaries, thus causing a kernel crash. (CAN-2005-2456) Tim Yamin discovered that the driver for compressed ISO file systems did not sufficiently validate the iput data. By tricking an user into mounting a malicious CD-ROM with a specially crafted compressed ISO file system, he could cause a kernel crash. (CAN-2005-2457) It was discovered that the kernel last seen 2020-06-01 modified 2020-06-02 plugin id 20575 published 2006-01-15 reporter Ubuntu Security Notice (C) 2005-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/20575 title Ubuntu 4.10 / 5.04 : linux-source-2.6.8.1, linux-source-2.6.10 vulnerabilities (USN-169-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2005-514.NASL description Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 4. This is the second regular update. This update has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. This is the second regular kernel update to Red Hat Enterprise Linux 4. New features introduced in this update include: - Audit support - systemtap - kprobes, relayfs - Keyring support - iSCSI Initiator - iscsi_sfnet 4:0.1.11-1 - Device mapper multipath support - Intel dual core support - esb2 chipset support - Increased exec-shield coverage - Dirty page tracking for HA systems - Diskdump -- allow partial diskdumps and directing to swap There were several bug fixes in various parts of the kernel. The ongoing effort to resolve these problems has resulted in a marked improvement in the reliability and scalability of Red Hat Enterprise Linux 4. The following security bugs were fixed in this update, detailed below with corresponding CAN names available from the Common Vulnerabilities and Exposures project (cve.mitre.org) : - flaws in ptrace() syscall handling on 64-bit systems that allowed a local user to cause a denial of service (crash) (CVE-2005-0756, CVE-2005-1761, CVE-2005-1762, CVE-2005-1763) - flaws in IPSEC network handling that allowed a local user to cause a denial of service or potentially gain privileges (CVE-2005-2456, CVE-2005-2555) - a flaw in sendmsg() syscall handling on 64-bit systems that allowed a local user to cause a denial of service or potentially gain privileges (CVE-2005-2490) - a flaw in sendmsg() syscall handling that allowed a local user to cause a denial of service by altering hardware state (CVE-2005-2492) - a flaw that prevented the topdown allocator from allocating mmap areas all the way down to address zero (CVE-2005-1265) - flaws dealing with keyrings that could cause a local denial of service (CVE-2005-2098, CVE-2005-2099) - a flaw in the 4GB split patch that could allow a local denial of service (CVE-2005-2100) - a xattr sharing bug in the ext2 and ext3 file systems that could cause default ACLs to disappear (CVE-2005-2801) - a flaw in the ipt_recent module on 64-bit architectures which could allow a remote denial of service (CVE-2005-2872) The following device drivers have been upgraded to new versions : qla2100 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2200 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2300 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2322 --------- 8.00.00b21-k to 8.01.00b5-rh2 qla2xxx --------- 8.00.00b21-k to 8.01.00b5-rh2 qla6312 --------- 8.00.00b21-k to 8.01.00b5-rh2 megaraid_mbox --- 2.20.4.5 to 2.20.4.6 megaraid_mm ----- 2.20.2.5 to 2.20.2.6 lpfc ------------ 0:8.0.16.6_x2 to 0:8.0.16.17 cciss ----------- 2.6.4 to 2.6.6 ipw2100 --------- 1.0.3 to 1.1.0 tg3 ------------- 3.22-rh to 3.27-rh e100 ------------ 3.3.6-k2-NAPI to 3.4.8-k2-NAPI e1000 ----------- 5.6.10.1-k2-NAPI to 6.0.54-k2-NAPI 3c59x ----------- LK1.1.19 mptbase --------- 3.01.16 to 3.02.18 ixgb ------------ 1.0.66 to 1.0.95-k2-NAPI libata ---------- 1.10 to 1.11 sata_via -------- 1.0 to 1.1 sata_ahci ------- 1.00 to 1.01 sata_qstor ------ 0.04 sata_sil -------- 0.8 to 0.9 sata_svw -------- 1.05 to 1.06 s390: crypto ---- 1.31 to 1.57 s390: zfcp ------ s390: CTC-MPC --- s390: dasd ------- s390: cio ------- s390: qeth ------ All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. last seen 2020-06-01 modified 2020-06-02 plugin id 19989 published 2005-10-11 reporter This script is Copyright (C) 2005-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/19989 title RHEL 4 : kernel (RHSA-2005:514)
Oval
| accepted | 2013-04-29T04:20:56.490-04:00 | ||||||||||||
| class | vulnerability | ||||||||||||
| contributors |
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| definition_extensions |
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| description | The KEYCTL_JOIN_SESSION_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a denial of service (semaphore hang) via a new session keyring (1) with an empty name string, (2) with a long name string, (3) with the key quota reached, or (4) ENOMEM. | ||||||||||||
| family | unix | ||||||||||||
| id | oval:org.mitre.oval:def:9638 | ||||||||||||
| status | accepted | ||||||||||||
| submitted | 2010-07-09T03:56:16-04:00 | ||||||||||||
| title | The KEYCTL_JOIN_SESSION_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a denial of service (semaphore hang) via a new session keyring (1) with an empty name string, (2) with a long name string, (3) with the key quota reached, or (4) ENOMEM. | ||||||||||||
| version | 26 |
Redhat
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References
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.12.5
- http://secunia.com/advisories/16355/
- http://secunia.com/advisories/17073
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:220
- http://www.redhat.com/support/errata/RHSA-2005-514.html
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://www.securityfocus.com/bid/14521
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9638
- https://usn.ubuntu.com/169-1/