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.
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 |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
hardy |
Not vulnerable
|
lucid |
Released
(2.6.32-34.73)
|
|
maverick |
Released
(2.6.35-30.60)
|
|
natty |
Released
(2.6.38-11.49)
|
|
oneiric |
Not vulnerable
(3.0.0-8.10)
|
|
upstream |
Released
(3.1~rc1)
|
|
Patches: Introduced by 0793a61d4df8daeac6492dbf8d2f3e5713caae5e |
||
linux-ec2 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(2.6.32-318.37)
|
|
maverick |
Ignored
(binary supplied by "linux" now)
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(2.6.31-610.28)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(2.6.35-30.60~lucid1)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(2.6.38-11.49~lucid1)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Not vulnerable
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Released
(2.6.32-218.35)
|
|
maverick |
Released
(2.6.32-418.35)
|
|
natty |
Does not exist
|
|
oneiric |
Does not exist
|
|
upstream |
Released
(3.1~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Does not exist
|
|
maverick |
Released
(2.6.35-903.24)
|
|
natty |
Released
(2.6.38-1209.15)
|
|
oneiric |
Not vulnerable
(3.0.0-1201.4)
|
|
upstream |
Released
(3.1~rc1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
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://ubuntu.com/security/notices/USN-1202-1
- https://ubuntu.com/security/notices/USN-1204-1
- https://ubuntu.com/security/notices/USN-1203-1
- https://ubuntu.com/security/notices/USN-1208-1
- https://ubuntu.com/security/notices/USN-1212-1
- https://ubuntu.com/security/notices/USN-1211-1
- https://ubuntu.com/security/notices/USN-1216-1
- https://ubuntu.com/security/notices/USN-1219-1
- https://ubuntu.com/security/notices/USN-1218-1
- https://ubuntu.com/security/notices/USN-1227-1
- https://ubuntu.com/security/notices/USN-1256-1
- NVD
- Launchpad
- Debian