CVE-2011-4326

high

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.

References

Advisories
More

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

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

http://www.securityfocus.com/bid/50751

http://downloads.avaya.com/css/P8/documents/100156038

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

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde

Details

Source: Mitre, NVD

Published: 2012-05-17

Updated: 2025-04-11

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.01502