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CVE-2012-6638

Published: 15 February 2014

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

From the Ubuntu Security Team

Denys Fedoryshchenko discovered a flaw in the Linux kernel's TCP receive processing for IPv4. A remote attacker could exploit this flaw to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets.

Notes

AuthorNote
jdstrand
android kernels (goldfish, grouper, maguro, mako and manta) are not
supported on the Ubuntu Touch 13.10 preview kernels
Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by fdf5af0daf8019cec2396cdef8fb042d80fe71fa
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-gke
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-mako
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (3.3~rc1)