CVE-2011-1770

Published: 24 June 2011

Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to cause a denial of service via a Datagram Congestion Control Protocol (DCCP) packet with an invalid feature options length, which triggers a buffer over-read.

From the Ubuntu Security Team

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service.

Priority

CVSS 3 base score: 7.5

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	hardy	Not vulnerable
	lucid	Released (2.6.32-33.64)
	maverick	Released (2.6.35-30.57)
	natty	Released (2.6.38-10.44)
	upstream	Released (2.6.39)
	Patches: Introduced by e77b8363b2ea7c0d89919547c1a8b0562f298b57 Fixed by a294865978b701e4d0d90135672749531b9a900d
linux-ec2 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-317.32)
	maverick	Ignored (binary supplied by "linux" now)
	natty	Does not exist
	upstream	Released (2.6.39)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.31-610.27)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.35-30.57~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-10.44~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.39)
linux-mvl-dove Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Released (2.6.32-217.34)
	maverick	Released (2.6.32-417.34)
	natty	Does not exist
	upstream	Released (2.6.39)
linux-ti-omap4 Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Released (2.6.38-1209.15)
	upstream	Released (2.6.39)

References

Bugs

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