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CVE-2012-4565

Published: 31 October 2012

The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.

From the Ubuntu security team

Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois congestion control algorithm. A local attacker could use this to cause a denial of service.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.7~rc4)