CVE-2011-2918
Published: 25 August 2011
The Performance Events subsystem in the Linux kernel before 3.1 does not properly handle event overflows associated with PERF_COUNT_SW_CPU_CLOCK events, which allows local users to cause a denial of service (system hang) via a crafted application.
From the Ubuntu security team
The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service.
Priority
CVSS 3 base score: 5.5
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
Patches: Introduced by 0793a61d4df8daeac6492dbf8d2f3e5713caae5e Fixed by a8b0ca17b80e92faab46ee7179ba9e99ccb61233 |
||
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
Notes
Author | Note |
---|---|
jdstrand | https://lkml.org/lkml/2011/7/27/337 (reproducer) https://lkml.org/lkml/2011/7/28/284 (fix) |
apw | mainline fix: a8b0ca17b80e92faab46ee7179ba9e99ccb61233 stable fix: 462fee3af72df0de7b60b96c525ffe8baf4db0f0 http://git.kernel.org/?p=linux/kernel/git/stable/linux-3.0.y.git;a=commit;h=462fee3af72df0de7b60b96c525ffe8baf4db0f0 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2918
- http://www.openwall.com/lists/oss-security/2011/08/15/4
- https://usn.ubuntu.com/usn/usn-1202-1
- https://usn.ubuntu.com/usn/usn-1204-1
- https://usn.ubuntu.com/usn/usn-1203-1
- https://usn.ubuntu.com/usn/usn-1208-1
- https://usn.ubuntu.com/usn/usn-1212-1
- https://usn.ubuntu.com/usn/usn-1211-1
- https://usn.ubuntu.com/usn/usn-1216-1
- https://usn.ubuntu.com/usn/usn-1219-1
- https://usn.ubuntu.com/usn/usn-1218-1
- https://usn.ubuntu.com/usn/usn-1227-1
- https://usn.ubuntu.com/usn/usn-1256-1
- NVD
- Launchpad
- Debian