Vulnerability Description
The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.39 |
| Avaya | 96X1 Ip Deskphone Firmware | >= 6.0.0, <= 6.6.0 |
| Avaya | 96X1 Ip Deskphone | - |
Related Weaknesses (CWE)
References
- http://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.openwall.com/lists/oss-security/2011/11/21/10Mailing List
- http://www.securityfocus.com/bid/50751Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=682066ExploitIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=755584Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbeddPatchThird Party Advisory
- http://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://www.openwall.com/lists/oss-security/2011/11/21/10Mailing List
- http://www.securityfocus.com/bid/50751Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=682066ExploitIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=755584Issue TrackingThird Party Advisory
FAQ
What is CVE-2011-4326?
CVE-2011-4326 is a vulnerability with a CVSS score of 7.1 (HIGH). The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial o...
How severe is CVE-2011-4326?
CVE-2011-4326 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4326?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Avaya 96X1 Ip Deskphone Firmware, Avaya 96X1 Ip Deskphone.