01 Record
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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.17% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 87.9% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2012-05-17 10:00Z14 YR AGO
- Last updated
- 2024-08-07 00:01Z2 YR AGO
- Reserved
- 2011-11-04
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- d01a838292e8f155bf38dd2797c92357188011b8c82fecc70168b115c77d86e0
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.securityfocus.com50751http://www.securityfocus.com/bid/50751
- downloads.avaya.comhttp://downloads.avaya.com/css/P8/documents/100156038
- www.openwall.com[oss-security] 20111121 Re: CVE Request -- kernel: wrong headroom check in udp6_ufo_fragment()http://www.openwall.com/lists/oss-security/2011/11/21/10
- github.comhttps://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbedde
- ftp.osuosl.orghttp://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=682066
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=755584
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde