Linux kernel VFAT IOCTLs denial of service
| kernel-vfatioctls-dos (34669) |  Low Risk |
Description:
Linux kernel is vulnerable to a denial of service, caused by the improper handling of VFAT IOCTLs run on 64bit systems. A local attacker could exploit this vulnerability using unknown attack vectors to cause the system to crash.
Platforms Affected:
- Avaya, Application Enablement Services 4.0.1
- Avaya, Communication Manager 3.0
- Avaya, Communication Manager 3.0.1
- Avaya, Communication Manager 3.1
- Avaya, Communication Manager 3.1.1
- Avaya, Communication Manager 3.1.2
- Avaya, Communication Manager 3.1.3
- Avaya, Communication Manager 3.1.4
- Avaya, Communication Manager 4.0
- Avaya, Communication Manager 4.0.1
- Avaya, Communication Manager 4.0.3
- Avaya, Converged Communications Server 3.1.1
- Avaya, Converged Communications Server 3.1.2
- Avaya, Converged Communications Server 4.0
- Avaya, Intuity Audix LX 2.0
- Avaya, Message Networking 3.1
- Avaya, Message Storage Server 3.0
- Avaya, SIP Enablement Services 3.1.1
- Avaya, SIP Enablement Services 3.1.2
- Avaya, SIP Enablement Services 4.0
- Canonical, Ubuntu 6.06 LTS
- Canonical, Ubuntu 6.10
- Canonical, Ubuntu 7.04
- Debian, Debian Linux 4.0
- Linux, Kernel 2.6.0 test3
- Linux, Kernel 2.6.0 test4
- Linux, Kernel 2.6.0 test1
- Linux, Kernel 2.6.0 test11
- Linux, Kernel 2.6.0
- Linux, Kernel 2.6.0 test5
- Linux, Kernel 2.6.0 test10
- Linux, Kernel 2.6.0 test9
- Linux, Kernel 2.6.0 test8
- Linux, Kernel 2.6.0 test7
- Linux, Kernel 2.6.0 test6
- Linux, Kernel 2.6.0 test2
- Linux, Kernel 2.6.1
- Linux, Kernel 2.6.1 rc1
- Linux, Kernel 2.6.1 rc3
- Linux, Kernel 2.6.1 rc2
- Linux, Kernel 2.6.10 rc2
- Linux, Kernel 2.6.10 rc3
- Linux, Kernel 2.6.10 rc1
- Linux, Kernel 2.6.10
- Linux, Kernel 2.6.11 rc5
- Linux, Kernel 2.6.11 rc4
- Linux, Kernel 2.6.11 rc2
- Linux, Kernel 2.6.11 rc3
- Linux, Kernel 2.6.11
- Linux, Kernel 2.6.11 rc1
- Linux, Kernel 2.6.11.1
- Linux, Kernel 2.6.11.10
- Linux, Kernel 2.6.11.11
- Linux, Kernel 2.6.11.12
- Linux, Kernel 2.6.11.2
- Linux, Kernel 2.6.11.3
- Linux, Kernel 2.6.11.4
- Linux, Kernel 2.6.11.5
- Linux, Kernel 2.6.11.6
- Linux, Kernel 2.6.11.7
- Linux, Kernel 2.6.11.8
- Linux, Kernel 2.6.11.9
- Linux, Kernel 2.6.12 rc1
- Linux, Kernel 2.6.12 rc2
- Linux, Kernel 2.6.12 rc3
- Linux, Kernel 2.6.12 rc5
- Linux, Kernel 2.6.12 rc6
- Linux, Kernel 2.6.12
- Linux, Kernel 2.6.12 rc4
- Linux, Kernel 2.6.12.1
- Linux, Kernel 2.6.12.12
- Linux, Kernel 2.6.12.2
- Linux, Kernel 2.6.12.22
- Linux, Kernel 2.6.12.3
- Linux, Kernel 2.6.12.4
- Linux, Kernel 2.6.12.5
- Linux, Kernel 2.6.12.6
- Linux, Kernel 2.6.13 rc4
- Linux, Kernel 2.6.13 rc6
- Linux, Kernel 2.6.13 rc7
- Linux, Kernel 2.6.13
- Linux, Kernel 2.6.13 rc3
- Linux, Kernel 2.6.13 rc2
- Linux, Kernel 2.6.13 rc1
- Linux, Kernel 2.6.13 rc5
- Linux, Kernel 2.6.13.1
- Linux, Kernel 2.6.13.2
- Linux, Kernel 2.6.13.3
- Linux, Kernel 2.6.13.4
- Linux, Kernel 2.6.13.5
- Linux, Kernel 2.6.14 rc2
- Linux, Kernel 2.6.14 rc5
- Linux, Kernel 2.6.14 rc4
- Linux, Kernel 2.6.14 rc3
- Linux, Kernel 2.6.14 rc1
- Linux, Kernel 2.6.14
- Linux, Kernel 2.6.14.1
- Linux, Kernel 2.6.14.2
- Linux, Kernel 2.6.14.3
- Linux, Kernel 2.6.14.4
- Linux, Kernel 2.6.14.5
- Linux, Kernel 2.6.14.6
- Linux, Kernel 2.6.14.7
- Linux, Kernel 2.6.15 rc7
- Linux, Kernel 2.6.15 rc6
- Linux, Kernel 2.6.15 rc5
- Linux, Kernel 2.6.15 rc4
- Linux, Kernel 2.6.15 rc3
- Linux, Kernel 2.6.15 rc1
- Linux, Kernel 2.6.15 rc2
- Linux, Kernel 2.6.15
- Linux, Kernel 2.6.15.1
- Linux, Kernel 2.6.15.11
- Linux, Kernel 2.6.15.2
- Linux, Kernel 2.6.15.3
- Linux, Kernel 2.6.15.4
- Linux, Kernel 2.6.15.5
- Linux, Kernel 2.6.15.6
- Linux, Kernel 2.6.15.7
- Linux, Kernel 2.6.16 rc7
- Linux, Kernel 2.6.16 rc6
- Linux, Kernel 2.6.16 rc5
- Linux, Kernel 2.6.16 rc4
- Linux, Kernel 2.6.16 rc3
- Linux, Kernel 2.6.16
- Linux, Kernel 2.6.16.1
- Linux, Kernel 2.6.16.10
- Linux, Kernel 2.6.16.11
- Linux, Kernel 2.6.16.12
- Linux, Kernel 2.6.16.13
- Linux, Kernel 2.6.16.14
- Linux, Kernel 2.6.16.15
- Linux, Kernel 2.6.16.16
- Linux, Kernel 2.6.16.17
- Linux, Kernel 2.6.16.18
- Linux, Kernel 2.6.16.19
- Linux, Kernel 2.6.16.2
- Linux, Kernel 2.6.16.20
- Linux, Kernel 2.6.16.21
- Linux, Kernel 2.6.16.22
- Linux, Kernel 2.6.16.23
- Linux, Kernel 2.6.16.24
- Linux, Kernel 2.6.16.25
- Linux, Kernel 2.6.16.26
- Linux, Kernel 2.6.16.27
- Linux, Kernel 2.6.16.28
- Linux, Kernel 2.6.16.29
- Linux, Kernel 2.6.16.3
- Linux, Kernel 2.6.16.30
- Linux, Kernel 2.6.16.31
- Linux, Kernel 2.6.16.32
- Linux, Kernel 2.6.16.33
- Linux, Kernel 2.6.16.34
- Linux, Kernel 2.6.16.35
- Linux, Kernel 2.6.16.36
- Linux, Kernel 2.6.16.37
- Linux, Kernel 2.6.16.38
- Linux, Kernel 2.6.16.39
- Linux, Kernel 2.6.16.4
- Linux, Kernel 2.6.16.40
- Linux, Kernel 2.6.16.41
- Linux, Kernel 2.6.16.43
- Linux, Kernel 2.6.16.44
- Linux, Kernel 2.6.16.45
- Linux, Kernel 2.6.16.46
- Linux, Kernel 2.6.16.47
- Linux, Kernel 2.6.16.48
- Linux, Kernel 2.6.16.49
- Linux, Kernel 2.6.16.5
- Linux, Kernel 2.6.16.50
- Linux, Kernel 2.6.16.51
- Linux, Kernel 2.6.16.52
- Linux, Kernel 2.6.16.53
- Linux, Kernel 2.6.16.6
- Linux, Kernel 2.6.16.7
- Linux, Kernel 2.6.16.8
- Linux, Kernel 2.6.16.9
- Linux, Kernel 2.6.17 rc1
- Linux, Kernel 2.6.17
- Linux, Kernel 2.6.17 rc6
- Linux, Kernel 2.6.17 rc5
- Linux, Kernel 2.6.17 rc4
- Linux, Kernel 2.6.17 rc3
- Linux, Kernel 2.6.17 rc2
- Linux, Kernel 2.6.17.1
- Linux, Kernel 2.6.17.10
- Linux, Kernel 2.6.17.11
- Linux, Kernel 2.6.17.12
- Linux, Kernel 2.6.17.13
- Linux, Kernel 2.6.17.14
- Linux, Kernel 2.6.17.2
- Linux, Kernel 2.6.17.3
- Linux, Kernel 2.6.17.4
- Linux, Kernel 2.6.17.5
- Linux, Kernel 2.6.17.6
- Linux, Kernel 2.6.17.7
- Linux, Kernel 2.6.17.8
- Linux, Kernel 2.6.17.9
- Linux, Kernel 2.6.18 rc1
- Linux, Kernel 2.6.18 rc2
- Linux, Kernel 2.6.18
- Linux, Kernel 2.6.18 rc5
- Linux, Kernel 2.6.18 rc7
- Linux, Kernel 2.6.18 rc6
- Linux, Kernel 2.6.18 rc4
- Linux, Kernel 2.6.18 rc3
- Linux, Kernel 2.6.18.1
- Linux, Kernel 2.6.18.10
- Linux, Kernel 2.6.18.11
- Linux, Kernel 2.6.18.12
- Linux, Kernel 2.6.18.13
- Linux, Kernel 2.6.18.14
- Linux, Kernel 2.6.18.15
- Linux, Kernel 2.6.18.16
- Linux, Kernel 2.6.18.17
- Linux, Kernel 2.6.18.18
- Linux, Kernel 2.6.18.19
- Linux, Kernel 2.6.18.2
- Linux, Kernel 2.6.18.20
- Linux, Kernel 2.6.18.21
- Linux, Kernel 2.6.18.22
- Linux, Kernel 2.6.18.23
- Linux, Kernel 2.6.18.24
- Linux, Kernel 2.6.18.25
- Linux, Kernel 2.6.18.26
- Linux, Kernel 2.6.18.27
- Linux, Kernel 2.6.18.28
- Linux, Kernel 2.6.18.29
- Linux, Kernel 2.6.18.3
- Linux, Kernel 2.6.18.30
- Linux, Kernel 2.6.18.31
- Linux, Kernel 2.6.18.32
- Linux, Kernel 2.6.18.33
- Linux, Kernel 2.6.18.34
- Linux, Kernel 2.6.18.35
- Linux, Kernel 2.6.18.36
- Linux, Kernel 2.6.18.37
- Linux, Kernel 2.6.18.38
- Linux, Kernel 2.6.18.39
- Linux, Kernel 2.6.18.4
- Linux, Kernel 2.6.18.40
- Linux, Kernel 2.6.18.41
- Linux, Kernel 2.6.18.42
- Linux, Kernel 2.6.18.43
- Linux, Kernel 2.6.18.44
- Linux, Kernel 2.6.18.45
- Linux, Kernel 2.6.18.46
- Linux, Kernel 2.6.18.47
- Linux, Kernel 2.6.18.48
- Linux, Kernel 2.6.18.49
- Linux, Kernel 2.6.18.5
- Linux, Kernel 2.6.18.50
- Linux, Kernel 2.6.18.51
- Linux, Kernel 2.6.18.52
- Linux, Kernel 2.6.18.53
- Linux, Kernel 2.6.18.6
- Linux, Kernel 2.6.18.7
- Linux, Kernel 2.6.18.8
- Linux, Kernel 2.6.18.9
- Linux, Kernel 2.6.19 rc2
- Linux, Kernel 2.6.19 rc3
- Linux, Kernel 2.6.19 rc4
- Linux, Kernel 2.6.19 rc1
- Linux, Kernel 2.6.19.0
- Linux, Kernel 2.6.19.1
- Linux, Kernel 2.6.19.2
- Linux, Kernel 2.6.19.3
- Linux, Kernel 2.6.19.4
- Linux, Kernel 2.6.2
- Linux, Kernel 2.6.2 rc3
- Linux, Kernel 2.6.2 rc2
- Linux, Kernel 2.6.2 rc1
- Linux, Kernel 2.6.20
- Linux, Kernel 2.6.20 rc2
- Linux, Kernel 2.6.20.1
- Linux, Kernel 2.6.20.10
- Linux, Kernel 2.6.20.11
- Linux, Kernel 2.6.20.12
- Linux, Kernel 2.6.20.13
- Linux, Kernel 2.6.20.14
- Linux, Kernel 2.6.20.15
- Linux, Kernel 2.6.20.2
- Linux, Kernel 2.6.20.3
- Linux, Kernel 2.6.20.4
- Linux, Kernel 2.6.20.5
- Linux, Kernel 2.6.20.6
- Linux, Kernel 2.6.20.7
- Linux, Kernel 2.6.20.8
- Linux, Kernel 2.6.20.9
- Linux, Kernel 2.6.21 git4
- Linux, Kernel 2.6.21 git3
- Linux, Kernel 2.6.21 git7
- Linux, Kernel 2.6.21 git6
- Linux, Kernel 2.6.21 git5
- Linux, Kernel 2.6.21 rc3
- Linux, Kernel 2.6.21 rc4
- Linux, Kernel 2.6.21 rc5
- Linux, Kernel 2.6.21 rc6
- Linux, Kernel 2.6.21 rc7
- Linux, Kernel 2.6.21 git2
- Linux, Kernel 2.6.21 git1
- Linux, Kernel 2.6.21
- Linux, Kernel 2.6.21.1
- Linux, Kernel 2.6.3 rc1
- Linux, Kernel 2.6.3
- Linux, Kernel 2.6.3 rc4
- Linux, Kernel 2.6.3 rc3
- Linux, Kernel 2.6.3 rc2
- Linux, Kernel 2.6.4
- Linux, Kernel 2.6.4 rc3
- Linux, Kernel 2.6.4 rc2
- Linux, Kernel 2.6.4 rc1
- Linux, Kernel 2.6.5
- Linux, Kernel 2.6.5 rc3
- Linux, Kernel 2.6.5 rc2
- Linux, Kernel 2.6.5 rc1
- Linux, Kernel 2.6.6 rc1
- Linux, Kernel 2.6.6
- Linux, Kernel 2.6.6 rc3
- Linux, Kernel 2.6.6 rc2
- Linux, Kernel 2.6.7
- Linux, Kernel 2.6.7 rc3
- Linux, Kernel 2.6.7 rc2
- Linux, Kernel 2.6.7 rc1
- Linux, Kernel 2.6.8
- Linux, Kernel 2.6.8 rc4
- Linux, Kernel 2.6.8 rc3
- Linux, Kernel 2.6.8 rc2
- Linux, Kernel 2.6.8 rc1
- Linux, Kernel 2.6.8.1
- Linux, Kernel 2.6.9
- Linux, Kernel 2.6.9 rc4
- Linux, Kernel 2.6.9 rc3
- Linux, Kernel 2.6.9 rc2
- Linux, Kernel 2.6.9 rc1
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 ES
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 5
- RedHat, Enterprise Linux 5 Client Workstation
- RedHat, Enterprise Linux 5 Client
Remedy:
Upgrade to the latest version of the Linux kernel (2.6.21.2 or later), available from the Linux Kernel Archives Web site. See References.
For Ubuntu Linux (linux-source):
Refer to USN-489-1 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux (linux-source):
Refer to USN-510-1 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux (kernel):
Refer to RHSA-2007:0705-2 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- The Linux Kernel Archives, ChangeLog-2.6.21.2 at http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.2.
- ASA-2007-474: kernel security update (RHSA-2007-0939)
- BID-24134: Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
- CVE-2007-2878: The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors.
- DSA-1479: linux-2.6 -- several vulnerabilities
- FrSIRT/ADV-2007-2023: Linux Kernel fat_dir_ioctl() VFAT IOCTL Handling Local Denial of Service Vulnerability
- RHSA-2007-0705: Important: kernel security update
- RHSA-2007-0939: Important: kernel security update
- SA25505: Linux Kernel VFAT IOCTLs Denial of Service
- SA27747: Avaya Products Kernel Multiple Vulnerabilities
- USN-486-1: Linux kernel vulnerabilities
- USN-489-1: Linux kernel vulnerabilities
- USN-510-1: Linux kernel vulnerabilities
Reported:
May 23, 2007
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