CVE-2011-2723

Name: CVE-2011-2723
Creator: NVD / NIST
Published: 2011-09-06T15:55:08.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.11%

Last modified Jun 16, 2026

CVE-2011-2723 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.11%

61.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.39.4

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=17dd759c67f21e34f2156abcf415e1f60605a188
http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
http://openwall.com/lists/oss-security/2011/07/28/13Mailing List, Patch, Third Party Advisory
http://openwall.com/lists/oss-security/2011/07/29/1Mailing List, Patch, Third Party Advisory
http://securitytracker.com/id?1025876Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4Broken Link
http://www.redhat.com/support/errata/RHSA-2011-1321.htmlThird Party Advisory
http://www.securityfocus.com/bid/48929Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=726552Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=17dd759c67f21e34f2156abcf415e1f60605a188
http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
http://openwall.com/lists/oss-security/2011/07/28/13Mailing List, Patch, Third Party Advisory
http://openwall.com/lists/oss-security/2011/07/29/1Mailing List, Patch, Third Party Advisory
http://securitytracker.com/id?1025876Third Party Advisory, VDB Entry
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4Broken Link
http://www.redhat.com/support/errata/RHSA-2011-1321.htmlThird Party Advisory
http://www.securityfocus.com/bid/48929Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=726552Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Sep 6, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2723?

How severe is CVE-2011-2723?

Severity scoring for CVE-2011-2723 is pending analysis. The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2723?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2723?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST