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Old 07-08-2011, 02:46 AM
Tim Gardner
Default APPLIED: dccp: handle invalid feature options length

On 07/07/2011 04:12 PM, Andy Whitcroft wrote:

Integer underflow in the dccp_parse_options function
(net/dccp/options.c) in the Linux kernel before 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.

This problem was introduced in v2.6.29-rc1 and therefore does not affect
hardy. The fix for this has already hit lucid, natty, and oneiric via
mainline and stable. Following this email is a patch for: lucid/fsl-imx51,
maverick, maverick/ti-omap4, and natty/ti-omap4; this is a clean
cherry-pick from the upstream commit.

Proposing for lucid/fsl-imx51, maverick, maverick/ti-omap4, and natty/ti-omap4.


Tim Gardner tim.gardner@canonical.com

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