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CVE-2011-1083

Published: 4 April 2011

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

From the Ubuntu Security Team

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would consume large amounts of CPU, leading to a denial of service.

Notes

AuthorNote
henrix
This has been fixed for a while with 93dc6107a76daed81c07f50215fa6ae77691634f

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Not vulnerable

karmic Ignored

lucid Not vulnerable

maverick Ignored
(end of life)
natty Ignored
(end of life)
oneiric Not vulnerable

precise Not vulnerable

quantal Not vulnerable

upstream Deferred
(no upstream fix)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 93dc6107a76daed81c07f50215fa6ae77691634f
linux-armadaxp
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

natty Does not exist

oneiric Does not exist

precise Not vulnerable

quantal Not vulnerable

upstream
Released (3.3)
This package is not directly supported by the Ubuntu Security Team
linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid Not vulnerable

maverick Ignored
(end of life)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid Ignored
(end of life)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream Deferred
(no upstream fix)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Ignored
(end of life)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream Ignored
(end of life)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream Ignored
(end of life)
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

precise Does not exist

quantal Does not exist

upstream
Released (3.3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Does not exist

precise Not vulnerable

quantal Does not exist

upstream
Released (3.3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid Ignored
(end of life)
maverick Ignored
(end of life)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream Deferred
(no upstream fix)
linux-ti-omap4
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Ignored
(end of life)
natty Ignored
(end of life)
oneiric Not vulnerable

precise Not vulnerable

quantal Not vulnerable

upstream
Released (3.3)