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CVE-2011-2699

Published: 16 August 2011

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

From the Ubuntu security team

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy
Released (2.6.24-29.94)
lucid
Released (2.6.32-35.78)
maverick
Released (2.6.35-30.60)
natty
Released (2.6.38-11.49)
oneiric Not vulnerable
(3.0.0-9.12)
upstream
Released (3.1~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-319.39)
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 (2.6.32-219.37)
maverick
Released (2.6.32-419.37)
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
(3.0.0-1204.9)
upstream
Released (3.1~rc1)