Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.39.4 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
- http://openwall.com/lists/oss-security/2011/07/28/13Mailing ListPatchThird Party Advisory
- http://openwall.com/lists/oss-security/2011/07/29/1Mailing ListPatchThird Party Advisory
- http://securitytracker.com/id?1025876Third Party AdvisoryVDB 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 AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=726552Issue TrackingPatchThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
- http://openwall.com/lists/oss-security/2011/07/28/13Mailing ListPatchThird Party Advisory
- http://openwall.com/lists/oss-security/2011/07/29/1Mailing ListPatchThird Party Advisory
- http://securitytracker.com/id?1025876Third Party AdvisoryVDB Entry
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4Broken Link
FAQ
What is CVE-2011-2723?
CVE-2011-2723 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 a...
How severe is CVE-2011-2723?
CVE-2011-2723 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2723?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.