Linux kernel clip_mkip() denial of service

kernel-clipmkip-dos (29387) The risk level is classified as LowLow Risk

Description:

Linux kernel is vulnerable to a denial of service caused by improper dereferencing of a pointer that was freed by the clip_mkip() function. A remote attacker could exploit this vulnerability to cause a kernel panic resulting in a denial of service.

Platforms Affected:

  • Canonical, Ubuntu 5.10
  • Canonical, Ubuntu 6.06 LTS
  • Canonical, Ubuntu 6.10
  • Debian, Debian Linux 3.1
  • Linux, Kernel 2.6.0 test7
  • Linux, Kernel 2.6.0 test8
  • Linux, Kernel 2.6.0 test9
  • Linux, Kernel 2.6.0 test6
  • Linux, Kernel 2.6.0 test5
  • Linux, Kernel 2.6.0
  • 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 test4
  • 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 rc3
  • Linux, Kernel 2.6.10
  • Linux, Kernel 2.6.10 rc1
  • Linux, Kernel 2.6.11 rc2
  • Linux, Kernel 2.6.11 rc3
  • Linux, Kernel 2.6.11 rc4
  • Linux, Kernel 2.6.11
  • Linux, Kernel 2.6.11 rc5
  • 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 rc6
  • Linux, Kernel 2.6.12 rc5
  • Linux, Kernel 2.6.12
  • Linux, Kernel 2.6.12 rc4
  • Linux, Kernel 2.6.12 rc3
  • Linux, Kernel 2.6.12 rc2
  • Linux, Kernel 2.6.12 rc1
  • 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 rc6
  • Linux, Kernel 2.6.13 rc7
  • Linux, Kernel 2.6.13 rc5
  • Linux, Kernel 2.6.13
  • Linux, Kernel 2.6.13 rc4
  • Linux, Kernel 2.6.13 rc3
  • Linux, Kernel 2.6.13 rc2
  • Linux, Kernel 2.6.13 rc1
  • 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 rc3
  • Linux, Kernel 2.6.14 rc1
  • Linux, Kernel 2.6.14
  • Linux, Kernel 2.6.14 rc4
  • Linux, Kernel 2.6.14 rc5
  • Linux, Kernel 2.6.14 rc2
  • 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 rc2
  • Linux, Kernel 2.6.15
  • Linux, Kernel 2.6.15 rc1
  • 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 2.6.15.1
  • 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 rc6
  • Linux, Kernel 2.6.16 rc5
  • Linux, Kernel 2.6.16 rc7
  • Linux, Kernel 2.6.16
  • Linux, Kernel 2.6.16 rc3
  • Linux, Kernel 2.6.16 rc4
  • 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 rc2
  • Linux, Kernel 2.6.17 rc5
  • Linux, Kernel 2.6.17 rc6
  • Linux, Kernel 2.6.17 rc1
  • Linux, Kernel 2.6.17
  • Linux, Kernel 2.6.17 rc4
  • Linux, Kernel 2.6.17 rc3
  • 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 2.6.2 rc3
  • Linux, Kernel 2.6.2 rc2
  • Linux, Kernel 2.6.2 rc1
  • Linux, Kernel 2.6.2
  • Linux, Kernel 2.6.3 rc1
  • Linux, Kernel 2.6.3 rc4
  • Linux, Kernel 2.6.3 rc3
  • Linux, Kernel 2.6.3 rc2
  • Linux, Kernel 2.6.3
  • 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 rc1
  • Linux, Kernel 2.6.5
  • Linux, Kernel 2.6.5 rc3
  • Linux, Kernel 2.6.5 rc2
  • Linux, Kernel 2.6.6 rc3
  • Linux, Kernel 2.6.6 rc2
  • Linux, Kernel 2.6.6
  • Linux, Kernel 2.6.6 rc1
  • 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 rc4
  • Linux, Kernel 2.6.8 rc3
  • Linux, Kernel 2.6.8 rc2
  • Linux, Kernel 2.6.8 rc1
  • Linux, Kernel 2.6.8
  • 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
  • MandrakeSoft, Mandrake Linux 2006
  • MandrakeSoft, Mandrake Linux 2006 X86_64
  • MandrakeSoft, Mandrake Linux 2007 X86_64
  • MandrakeSoft, Mandrake Linux 2007
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0
  • MandrakeSoft, Mandrake Multi Network Firewall 2.0
  • Novell, Linux Desktop 9
  • Novell, Linux POS 9
  • Novell, Open Enterprise Server
  • Novell, Open Enterprise Server
  • RedHat, Enterprise Linux 2.1 WS
  • RedHat, Enterprise Linux 2.1 AS
  • RedHat, Enterprise Linux 2.1 ES
  • RedHat, Enterprise Linux 3 ES
  • RedHat, Enterprise Linux 3 AS
  • RedHat, Enterprise Linux 3 WS
  • RedHat, Enterprise Linux 3 Desktop
  • RedHat, Enterprise Linux 4 ES
  • RedHat, Enterprise Linux 4 AS
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 Desktop
  • RedHat, Linux Advanced Workstation 2.1 Itanium
  • SuSE, Linux Enterprise Server 9
  • SuSE, SuSE SLED 10
  • SuSE, SuSE SLES 10
  • SuSE, SuSE SLES 9

Remedy:

Upgrade to the latest version of Linux kernel (version 2.6.18 or later), available from the Linux Kernel Web site. See References.

For Red Hat Linux 4:
Refer to RHSA-2006:0689-15 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux 3:
Refer to RHSA-2006:0710-7 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux:
Refer to Mandriva Linux Security Advisory MDKSA-2007:012 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux (kernel):
Refer to RHSA-2007:0012 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux (kernel):
Refer to RHSA-2007:0013 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 Web site, The Linux Kernel Archives at http://kernel.org/.
  • ASA-2006-249: kernel security update (RHSA-2006-0689)
  • ASA-2006-254: kernel security update (RHSA-2006-0710)
  • ASA-2007-078: kernel security update (RHSA-2007-0013)
  • ASA-2007-118: kernel security update (RHSA-2007-0012)
  • BID-20363: Linux Kernel ATM SkBuff Dereference Remote Denial of Service Vulnerability
  • CVE-2006-4997: The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).
  • DSA-1233: kernel-source-2.6.8 -- several vulnerabilities
  • DSA-1237: kernel-source-2.4.27 -- several vulnerabilities
  • MDKSA-2006:197: Updated kernel packages fix multiple vulnerabilities and bugs
  • MDKSA-2007:012: Updated kernel packages fix multiple vulnerabilities and bugs
  • MDKSA-2007:025: Updated kernel packages fix multiple vulnerabilities and bugs
  • RHSA-2006-0689: kernel security update
  • RHSA-2006-0710: kernel security update
  • RHSA-2007-0012: Moderate: kernel security update
  • RHSA-2007-0013: Moderate: kernel security update
  • SA22253: Linux Kernel "clip_mkip()" Denial of Service Vulnerability
  • SA22279: Linux Kernel Denial of Service Vulnerabilities
  • SA22945: Avaya Products Linux Kernel Multiple Vulnerabilities
  • SA23064: Avaya Products Linux Kernel Multiple Vulnerabilities
  • SA24288: Avaya Products Linux Kernel Denial of Service
  • SECTRACK ID: 1017526: Linux Kernel ATM clip_mkip() Function Lets Remote Users Deny Service
  • SUSE-SA:2006:079: Linux kernel security problems
  • USN-395-1: Linux kernel vulnerabilities
  • VUPEN/ADV-2006-3937: Linux Kernel sys_perfmon() and clip_mkip() Denial of Service Vulnerabilities
  • VUPEN/ADV-2006-3999: Linux Kernel clip_mkip() ATM Subsystem Remote Denial of Service Vulnerability

Reported:

Oct 06, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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