National Cyber Awareness System

Vulnerability Summary for CVE-2011-4326

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde

Hyperlink:https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=755584

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=755584

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=682066

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=682066

External Source: MLIST

Name: [oss-security] 20111121 Re: CVE Request -- kernel: wrong headroom check in udp6_ufo_fragment()

Hyperlink:http://www.openwall.com/lists/oss-security/2011/11/21/10

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a9cf73ea7ff78f52662c8658d93c226effbbedde

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a9cf73ea7ff78f52662c8658d93c226effbbedde

External Source: CONFIRM

Name: http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

Hyperlink:http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39