CVE-2005-2456: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

  • Debian Debian Linux: version 3.1 only
  • Linux Linux Kernel: version 2.6.0 only

Published 2005-08-04. Last modified 2026-06-16.