CVE-2011-4087

Published: 29 October 2011

The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.

From the Ubuntu security team

Scot Doyle discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
Patches:
Introduced by 462fb2af9788a82a534f8184abfde31574e1cfa0
Fixed by f8e9881c2aef1e982e5abc25c046820cd0b7cf64
Introduced by 462fb2af9788a82a534f8184abfde31574e1cfa0
Fixed by 66944e1c5797562cebe2d1857d46dff60bf9a69e
Introduced by 462fb2af9788a82a534f8184abfde31574e1cfa0
Fixed by c65353daf137dd41f3ede3baf62d561fca076228
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.39~rc5)