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
| Author | Note |
|---|---|
| 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 |
||
|
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)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6638
- https://github.com/torvalds/linux/commit/fdf5af0daf8019cec2396cdef8fb042d80fe71fa
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fdf5af0daf8019cec2396cdef8fb042d80fe71fa
- https://bugzilla.redhat.com/show_bug.cgi?id=826702
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
- https://ubuntu.com/security/notices/USN-1529-1
- https://ubuntu.com/security/notices/USN-1514-1
- https://ubuntu.com/security/notices/USN-1651-1
- https://ubuntu.com/security/notices/USN-1653-1
- NVD
- Launchpad
- Debian