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CVE-2011-3637

Published: 12 January 2012

The m_stop function in fs/proc/task_mmu.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (OOPS) via vectors that trigger an m_start error.

From the Ubuntu Security Team

A flaw was found in the Linux kernel's /proc/*/*map* interface. A local, unprivileged user could exploit this flaw to cause a denial of service.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy Not vulnerable

lucid
Released (2.6.32-34.74)
maverick
Released (2.6.35-30.58)
natty
Released (2.6.38-11.49)
oneiric Not vulnerable
(2.6.39-0.1)
precise Not vulnerable
(3.1.0-1.1)
quantal Not vulnerable
(3.1.0-1.0)
upstream
Released (2.6.39~rc1)
Patches:
Introduced by

ec6fd8a4355cda81cd9f06bebc048e83eb514ac7

Fixed by 76597cd31470fa130784c78fadb4dab2e624a723
linux-armadaxp
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

natty Does not exist

oneiric Does not exist

precise Not vulnerable
(3.2.0-1600.1)
quantal Not vulnerable
(3.2.0-1602.5)
upstream
Released (2.6.39~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-318.37)
maverick Ignored
(end of life)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~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

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~rc1)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.35-30.58~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~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

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~rc1)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(3.0.0-5.6~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~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

precise Does not exist

quantal Does not exist

upstream
Released (2.6.39~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
(3.0.0-1200.1)
precise Not vulnerable
(3.0.0-1401.2)
quantal Not vulnerable
(3.0.0-1401.2)
upstream
Released (2.6.39~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