Linux kernel icmp.c ip_options_echo() denial of service

kernel-icmp-ipoptionsecho-dos (24575) The risk level is classified as LowLow Risk

Description:

Linux kernel versions 2.6.12 through 2.6.15.2 are vulnerable to a denial of service attack caused by improper handling of ICMP responses when the ip_iptions_echo() function in icmp.c fails. A remote attacker could exploit this vulnerability using a specially-crafted ICMP packet to cause the system to crash.

Platforms Affected:

  • Canonical, Ubuntu 5.10
  • Linux, Kernel 2.6.12
  • Linux, Kernel 2.6.12 rc1
  • Linux, Kernel 2.6.12 rc4
  • Linux, Kernel 2.6.12 rc5
  • Linux, Kernel 2.6.12.1
  • Linux, Kernel 2.6.12.2
  • 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 rc4
  • Linux, Kernel 2.6.13 rc1
  • Linux, Kernel 2.6.13
  • Linux, Kernel 2.6.13 rc7
  • 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 2.6.14 rc2
  • Linux, Kernel 2.6.14
  • Linux, Kernel 2.6.14 rc3
  • Linux, Kernel 2.6.14 rc4
  • Linux, Kernel 2.6.14 rc1
  • 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 2.6.15 rc6
  • Linux, Kernel 2.6.15 rc5
  • Linux, Kernel 2.6.15 rc3
  • Linux, Kernel 2.6.15 rc7
  • Linux, Kernel 2.6.15 rc1
  • Linux, Kernel 2.6.15
  • Linux, Kernel 2.6.15 rc2
  • Linux, Kernel 2.6.15 rc4
  • Linux, Kernel 2.6.15.1
  • Linux, Kernel 2.6.15.2
  • Linux, Kernel 2.6.15.3
  • MandrakeSoft, Mandrake Linux 2006 X86_64
  • MandrakeSoft, Mandrake Linux 2006
  • SuSE, SuSE Linux 10.0
  • SuSE, SuSE Linux 9.2

Remedy:

Upgrade to the latest stable version of Linux Kernel (2.6.15.3 or later), available from The Linux Kernel Archives. See References.

For Ubuntu Linux:
Refer to USN-250-1 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:

Reported:

Feb 07, 2006

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For corrections or additions please email xforce@iss.net

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