ISS X-Force Database: linux-kernel-xfrm-dos(21710): Linux kernel XFRM code denial of service

Linux kernel XFRM code denial of service

linux-kernel-xfrm-dos (21710)

Medium Risk

Description:

Linux kernel is vulnerable to a denial of service attack caused by improper bounds checking of user-supplied input in the xfrm_sk_policy_insert function in the XFRM code. A local attacker could use this vulnerability to overflow a buffer and cause the system to crash.

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Linux Kernel (2.6.13-rc4 or later), available from The Linux Kernel Archives Web page. See References.

For SUSE Linux:
Upgrade to the latest version of kernel, as listed below. Refer to SUSE Security Announcement SUSE-SA:2005:050. See References.

X86 platform:
SUSE Linux 9.3: 2.6.11.4-21 or later
SUSE Linux 9.2: 2.6.8-24.18 or later
SUSE Linux 9.1: 2.6.5-7.201 or later

x86-64 platform:
SUSE Linux 9.3: 2.6.11.4-21.9 or later
SUSE Linux 9.2: 2.6.8-24.18 or later
SUSE Linux 9.1::2.6.5-7.201 or later

For Debian GNU/Linux:
Refer to DSA-921-1 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux:
Refer to RHSA-2005:514-46 or RHSA-2005:663-19 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-169-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

The Mail Archive Web site: possible overflow of sock->sk_policy.
The The Linux Kernel Archives Web page: The Linux Kernel Archives.
BID-14477: Linux Kernel XFRM Array Index Buffer Overflow Vulnerability
CVE-2005-2456: Array index overflow in the xfrm_sk_policy_insert function in xfrm_user.c in Linux kernel 2.6 allows local users to cause a denial of service (oops or deadlock) and possibly execute arbitrary code via a p->dir value that is larger than XFRM_POLICY_OUT, which is used as an index in the sock->sk_policy array.
DSA-921: kernel-source-2.4.27 -- several vulnerabilities
DSA-922: kernel-source-2.6.8 -- several vulnerabilities
MDKSA-2005:171: Updated kernel packages fix multiple vulnerabilities
MDKSA-2005:219: Updated kernel packages fix numerous vulnerabilities
MDKSA-2005:220: Updated kernel packages fix numerous vulnerabilities
RHSA-2005-514: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 2
RHSA-2005-663: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 6
SA16298: Linux Kernel xfrm Array Indexing Overflow Vulnerability
SUSE-SA:2005:050: kernel: denial of service local privilege escalation
USN-169-1: Linux kernel vulnerabilities

Platforms Affected:

Canonical Ubuntu 4.10
Canonical Ubuntu 5.04
Debian Debian Linux 3.1
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 test1
Linux Kernel 2.6.0 test6
Linux Kernel 2.6.0 test11
Linux Kernel 2.6.0 test2
Linux Kernel 2.6.0 test3
Linux Kernel 2.6.0 test4
Linux Kernel 2.6.0 test5
Linux Kernel 2.6.0
Linux Kernel 2.6.1 rc2
Linux Kernel 2.6.1 rc1
Linux Kernel 2.6.1 rc3
Linux Kernel 2.6.1
Linux Kernel 2.6.10 rc1
Linux Kernel 2.6.10 rc3
Linux Kernel 2.6.10 rc2
Linux Kernel 2.6.10
Linux Kernel 2.6.11 rc4
Linux Kernel 2.6.11 rc5
Linux Kernel 2.6.11 rc1
Linux Kernel 2.6.11 rc3
Linux Kernel 2.6.11 rc2
Linux Kernel 2.6.11
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 rc2
Linux Kernel 2.6.12 rc5
Linux Kernel 2.6.12 rc6
Linux Kernel 2.6.12 rc3
Linux Kernel 2.6.12 rc4
Linux Kernel 2.6.12 rc1
Linux Kernel 2.6.12
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 rc2
Linux Kernel 2.6.13 rc3
Linux Kernel 2.6.13 rc1
Linux Kernel 2.6.2 rc1
Linux Kernel 2.6.2 rc2
Linux Kernel 2.6.2 rc3
Linux Kernel 2.6.3 rc4
Linux Kernel 2.6.3 rc2
Linux Kernel 2.6.3 rc1
Linux Kernel 2.6.3 rc3
Linux Kernel 2.6.3
Linux Kernel 2.6.4 rc2
Linux Kernel 2.6.4 rc1
Linux Kernel 2.6.4 rc3
Linux Kernel 2.6.4
Linux Kernel 2.6.5 rc2
Linux Kernel 2.6.5 rc1
Linux Kernel 2.6.5 rc3
Linux Kernel 2.6.5
Linux Kernel 2.6.6 rc3
Linux Kernel 2.6.6 rc2
Linux Kernel 2.6.6 rc1
Linux Kernel 2.6.6
Linux Kernel 2.6.7 rc3
Linux Kernel 2.6.7 rc1
Linux Kernel 2.6.7 rc2
Linux Kernel 2.6.7
Linux Kernel 2.6.8 rc3
Linux Kernel 2.6.8 rc1
Linux Kernel 2.6.8 rc4
Linux Kernel 2.6.8 rc2
Linux Kernel 2.6.8
Linux Kernel 2.6.8.1
Linux Kernel 2.6.9 rc1
Linux Kernel 2.6.9 rc2
Linux Kernel 2.6.9 rc4
Linux Kernel 2.6.9 rc3
Linux Kernel 2.6.9
Linux Linux Kernel 2.6.2
MandrakeSoft Mandrake Linux 10.1
MandrakeSoft Mandrake Linux 10.1 X86_64
MandrakeSoft Mandrake Linux LE2005
MandrakeSoft Mandrake Linux LE2005 X86_64
MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
MandrakeSoft Mandrake Linux Corporate Server 3.0
MandrakeSoft Mandrake Multi Network Firewall 2.0
Novell Linux Desktop 9
RedHat Enterprise Linux 3 Desktop
RedHat Enterprise Linux 3 WS
RedHat Enterprise Linux 3 ES
RedHat Enterprise Linux 3 AS
RedHat Enterprise Linux 4 Desktop
RedHat Enterprise Linux 4 WS
RedHat Enterprise Linux 4 ES
RedHat Enterprise Linux 4 AS
SuSE Linux Enterprise Server 9
SUSE SuSE Linux 9.1
SUSE SuSE Linux 9.2
SUSE SuSE Linux 9.3
SuSE SuSE SLES 9

Reported:

Aug 05, 2005

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