CVE-2010-4526

Published: 10 January 2011

Race condition in the sctp_icmp_proto_unreachable function in net/sctp/input.c in Linux kernel 2.6.11-rc2 through 2.6.33 allows remote attackers to cause a denial of service (panic) via an ICMP unreachable message to a socket that is already locked by a user, which causes the socket to be freed and triggers list corruption, related to the sctp_wait_for_connect function.

From the Ubuntu Security Team

It was discovered that the ICMP stack did not correctly handle certain unreachable messages. If a remote attacker were able to acquire a socket lock, they could send specially crafted traffic that would crash the system, leading to a denial of service.

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Released (2.6.24-29.91)
	karmic	Ignored
	lucid	Released (2.6.32-29.57)
	maverick	Not vulnerable (2.6.35-1.1)
	natty	Not vulnerable (2.6.37-2.9)
	upstream	Released (2.6.34)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=50b5d6ad63821cea324a5a7a19854d4de1a0a819
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-313.25)
	maverick	Ignored (end of life)
	natty	Does not exist
	upstream	Released (2.6.34)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.31-610.27)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.34)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Not vulnerable (2.6.35-1.1~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.34)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-1.27~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.34)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-214.30)
	maverick	Released (2.6.32-414.30)
	natty	Does not exist
	upstream	Released (2.6.34)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Ignored
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.34)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Not vulnerable (2.6.35-903.8)
	natty	Not vulnerable (2.6.38-1201.2)
	upstream	Released (2.6.34)

References

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