CVE-2011-4326

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2011-4326
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-05-17 11:00:33 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 7.1 from [email protected]

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

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Avaya 96x1 Ip Deskphone - All All All
Operating System Avaya 96x1 Ip Deskphone Firmware All All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
ASA-2012-044 (WIND00319165 WIND00319166) af854a3a-2127-422b-91ae-364da2661108 downloads.avaya.com Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Bug 682066 – panic on ipv6 udp-fragmentation-offload of bridge device af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Exploit, Issue Tracking, Third Party Advisory
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org Broken Link
Bug 755584 – CVE-2011-4326 kernel: wrong headroom check in udp6_ufo_fragment() af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory
Linux Kernel Headroom Check 'udp6_ufo_fragment()' Remote Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
oss-security - Re: CVE Request -- kernel: wrong headroom check in udp6_ufo_fragment() af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
ipv6: udp: fix the wrong headroom check · torvalds/linux@a9cf73e · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
Red Hat Customer Portal MITRE access.redhat.com
Red Hat Customer Portal MITRE access.redhat.com
CVE-2011-4326 - Red Hat Customer Portal MITRE access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report