Linux Kernel selinux_parse_skb_ipv6 denial of service

kernel-selinuxparseskbipv6-dos (56614) The risk level is classified as MediumMedium Risk

Description:

Linux Kernel is vulnerable to a denial of service, caused by an error in the selinux_parse_skb_ipv6 function. A remote attacker could exploit this vulnerability using attack vectors related to an incorrect call to the ipv6_skip_exthdr function to cause the kernel to OOPS.

*CVSS:

Base Score: 4
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 3.1
  Exploitability: Unproven
  Remediation Level: Temporary-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Apply the patch for this vulnerability, available from the Linux Kernel GIT Repository. See References.

References:

  • Linux Kernel GIT Repository: Fix ipv6_skip_exthdr() invocation causing OOPS.
  • CVE-2005-4886: The selinux_parse_skb_ipv6 function in security/selinux/hooks.c in the Linux kernel before 2.6.12-rc4 allows remote attackers to cause a denial of service (OOPS) via vectors associated with an incorrect call to the ipv6_skip_exthdr function.
  • OSVDB ID: 63189: Linux Kernel security/selinux/hooks.c selinux_parse_skb_ipv6 Function Remote DoS
  • RHSA-2005-514: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 2

Platforms Affected:

  • 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 test5
  • Linux Kernel 2.6.0 test4
  • Linux Kernel 2.6.0 test3
  • Linux Kernel 2.6.0 test2
  • Linux Kernel 2.6.0 test11
  • Linux Kernel 2.6.0 test10
  • Linux Kernel 2.6.0 test1
  • Linux Kernel 2.6.0
  • Linux Kernel 2.6.1 rc1
  • Linux Kernel 2.6.1 rc2
  • Linux Kernel 2.6.1 rc3
  • Linux Kernel 2.6.1
  • Linux Kernel 2.6.10 rc2
  • Linux Kernel 2.6.10 rc1
  • Linux Kernel 2.6.10 rc3
  • Linux Kernel 2.6.10
  • 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 rc3
  • Linux Kernel 2.6.12 rc1
  • Linux Kernel 2.6.2 rc2
  • Linux Kernel 2.6.2 rc3
  • Linux Kernel 2.6.2 rc1
  • Linux Kernel 2.6.3 rc4
  • Linux Kernel 2.6.3 rc3
  • Linux Kernel 2.6.3 rc2
  • Linux Kernel 2.6.3 rc1
  • 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 rc3
  • Linux Kernel 2.6.5 rc1
  • Linux Kernel 2.6.5
  • Linux Kernel 2.6.6 rc1
  • Linux Kernel 2.6.6 rc3
  • Linux Kernel 2.6.6 rc2
  • Linux Kernel 2.6.6
  • Linux Kernel 2.6.7 rc3
  • Linux Kernel 2.6.7 rc2
  • Linux Kernel 2.6.7 rc1
  • Linux Kernel 2.6.7
  • Linux Kernel 2.6.8
  • Linux Kernel 2.6.8.1
  • Linux Kernel 2.6.9 rc2
  • Linux Kernel 2.6.9 rc3
  • Linux Kernel 2.6.9 rc4
  • Linux Kernel 2.6.9 rc1
  • Linux Kernel 2.6.9 final
  • Linux Kernel 2.6.9
  • Linux Linux Kernel 2.6.2
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop

Reported:

Apr 25, 2005

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