CVE-2011-2491

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Summary

CVECVE-2011-2491
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-03-01 12:37:53 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe Network Lock Manager (NLM) protocol implementation in the NFS client functionality in the Linux kernel before 3.0 allows local users to cause a denial of service (system hang) via a LOCK_UN flock system call.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

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

Problem Types: CWE-400 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux Desktop 5.0 All All All
Operating System Redhat Enterprise Linux Server 5.0 All All All
Operating System Redhat Enterprise Linux Workstation 5.0 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
NLM: Don't hang forever on NLM unlock requests · torvalds/linux@0b76011 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org Broken Link
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
Bug 709393 – CVE-2011-2491 kernel: rpc task leak after flock()ing NFS share af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
access.redhat.com af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
oss-security - Re: CVE request: kernel: NLM: Don't hang forever on NLM unlock requests af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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