CVE-2011-2918

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a8b0ca17b80e92faab46ee7179ba9e99ccb61233

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

http://www.openwall.com/lists/oss-security/2011/08/16/1

https://bugzilla.redhat.com/show_bug.cgi?id=730706

https://github.com/torvalds/linux/commit/a8b0ca17b80e92faab46ee7179ba9e99ccb61233

Details

Source: MITRE

Published: 2012-05-24

Updated: 2020-07-31

Type: CWE-400

Risk Information

CVSS v2

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (21 total)

IDNameProductFamilySeverity
76639RHEL 6 : MRG (RHSA-2012:0333)NessusRed Hat Local Security Checks
medium
75881openSUSE Security Update : kernel (openSUSE-SU-2011:1222-1)NessusSuSE Local Security Checks
critical
75556openSUSE Security Update : kernel (openSUSE-SU-2011:1221-1)NessusSuSE Local Security Checks
critical
69575Amazon Linux AMI : kernel (ALAS-2011-16)NessusAmazon Linux Local Security Checks
critical
68364Oracle Linux 6 : kernel (ELSA-2011-1350)NessusOracle Linux Local Security Checks
medium
61148Scientific Linux Security Update : kernel on SL6.x i386/x86_64NessusScientific Linux Local Security Checks
medium
57110SuSE 11.1 Security Update : Linux kernel (SAT Patch Number 5056)NessusSuSE Local Security Checks
medium
57109SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 5031 / 5055)NessusSuSE Local Security Checks
medium
56768Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1256-1)NessusUbuntu Local Security Checks
critical
56466Ubuntu 10.10 : linux vulnerabilities (USN-1227-1)NessusUbuntu Local Security Checks
critical
56404RHEL 6 : kernel (RHSA-2011:1350)NessusRed Hat Local Security Checks
medium
56344Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1219-1)NessusUbuntu Local Security Checks
critical
56343Ubuntu 10.04 LTS : linux vulnerabilities (USN-1218-1)NessusUbuntu Local Security Checks
high
56305Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1216-1)NessusUbuntu Local Security Checks
high
56257USN-1212-1 : linux-ti-omap4 vulnerabilitiesNessusUbuntu Local Security Checks
high
56256Ubuntu 11.04 : linux vulnerabilities (USN-1211-1)NessusUbuntu Local Security Checks
high
56207Ubuntu 10.10 : linux-mvl-dove vulnerabilities (USN-1208-1)NessusUbuntu Local Security Checks
high
56192USN-1204-1 : linux-fsl-imx51 vulnerabilitiesNessusUbuntu Local Security Checks
high
56191Ubuntu 10.04 LTS : linux-mvl-dove vulnerabilities (USN-1203-1)NessusUbuntu Local Security Checks
high
56190USN-1202-1 : linux-ti-omap4 vulnerabilitiesNessusUbuntu Local Security Checks
high
56130Debian DSA-2303-2 : linux-2.6 - privilege escalation/denial of service/information leakNessusDebian Local Security Checks
critical