Vulnerability CVE-2011-2723
Published: 2011-09-06   Modified: 2012-02-13

Description:
The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before 2.6.39.4, when Generic Receive Offload (GRO) is enabled, resets certain fields in incorrect situations, which allows remote attackers to cause a denial of service (system crash) via crafted network traffic.

CVSS2 => (AV:A/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.7/10
6.9/10
5.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Kernel 
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=17dd759c67f21e34f2156abcf415e1f60605a188
http://marc.info/?l=bugtraq&m=139447903326211&w=2
http://openwall.com/lists/oss-security/2011/07/28/13
http://openwall.com/lists/oss-security/2011/07/29/1
http://securitytracker.com/id?1025876
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
http://www.redhat.com/support/errata/RHSA-2011-1321.html
http://www.securityfocus.com/bid/48929
https://bugzilla.redhat.com/show_bug.cgi?id=726552
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