Vulnerability Monitor

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CVE-2011-4326

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.

Published

2012-05-17T11:00:33.837

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 2.6.39	Yes
Operating System	avaya	96x1_ip_deskphone_firmware	≤ 6.6.0	Yes
Hardware	avaya	96x1_ip_deskphone	-	No

References

http://downloads.avaya.com/css/P8/documents/100156038 Third Party Advisory ([email protected])
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 Broken Link ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde ([email protected])
http://www.openwall.com/lists/oss-security/2011/11/21/10 Mailing List ([email protected])
http://www.securityfocus.com/bid/50751 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=682066 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=755584 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde Patch, Third Party Advisory ([email protected])
http://downloads.avaya.com/css/P8/documents/100156038 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/11/21/10 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/50751 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=682066 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=755584 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)