CVE-2011-2491

Priority
Medium
Description
The Network Lock Manager (NLM) protocol implementation in the NFS client
functionality in the Linux kernel before 3.0 allows local users to cause a
denial of service (system hang) via a LOCK_UN flock system call.
Ubuntu-Description
Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly
handled unlock requests. A local attacker could exploit this to cause a
denial of service.
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2491
https://rhn.redhat.com/errata/RHSA-2011-1212.html
http://www.ubuntu.com/usn/usn-1244-1
http://www.ubuntu.com/usn/usn-1268-1
http://www.ubuntu.com/usn/usn-1269-1
http://www.ubuntu.com/usn/usn-1272-1
http://www.ubuntu.com/usn/usn-1271-1
http://www.ubuntu.com/usn/usn-1274-1
http://www.ubuntu.com/usn/usn-1278-1
http://www.ubuntu.com/usn/usn-1279-1
http://www.ubuntu.com/usn/usn-1281-1
http://www.ubuntu.com/usn/usn-1285-1
http://www.ubuntu.com/usn/usn-1286-1
Bugs
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2491
https://launchpad.net/bugs/869237
Package
Source: linux-armadaxp (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.2.0-1600.1)
Ubuntu 12.10 (Quantal Quetzal):not-affected (3.2.0-1602.5)
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-ec2 (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-340.40)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-lts-backport-oneiric (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):not-affected
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-lts-backport-natty (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.38-13.52~lucid1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-lts-quantal (LP Ubuntu Debian)
Upstream:DNE
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 12.04 LTS (Precise Pangolin):not-affected
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Patches:
Package
Source: linux-mvl-dove (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):pending (2.6.32-220.38)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-lts-backport-maverick (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.35-31.62~lucid1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-36.79)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.0-3.4)
Ubuntu 12.10 (Quantal Quetzal):not-affected (3.0-3.4)
Ubuntu 13.04 (Raring Ringtail):not-affected (3.0-3.4)
Ubuntu 13.10 (Saucy Salamander):not-affected (3.0-3.4)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 0b760113a3a155269a3fba93a409c640031dd68f
Package
Source: linux-ti-omap4 (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.0.0-1200.1)
Ubuntu 12.10 (Quantal Quetzal):not-affected (3.0.0-1200.1)
Ubuntu 13.04 (Raring Ringtail):not-affected (3.0.0-1200.1)
Ubuntu 13.10 (Saucy Salamander):not-affected (3.0.0-1200.1)
Package
Source: linux-fsl-imx51 (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.31-612.30)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
Package
Source: linux-lts-raring (LP Ubuntu Debian)
Upstream:released (3.0~rc5)
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 12.04 LTS (Precise Pangolin):not-affected
Ubuntu 12.10 (Quantal Quetzal):DNE
Ubuntu 13.04 (Raring Ringtail):DNE
Ubuntu 13.10 (Saucy Salamander):DNE
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Updated: 2013-05-10 19:14:32 UTC (commit 6828)