#VU44079 Resource management error in Linux kernel - CVE-2011-4326
Published: May 17, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44079
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-4326
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.
External links
- http://downloads.avaya.com/css/P8/documents/100156038
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a9cf73ea7ff78f52662c8658d93c226effbbedde
- http://www.openwall.com/lists/oss-security/2011/11/21/10
- http://www.securityfocus.com/bid/50751
- https://bugzilla.redhat.com/show_bug.cgi?id=682066
- https://bugzilla.redhat.com/show_bug.cgi?id=755584
- https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde