01 Record
CVE-2011-2491
The 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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The 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
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
- 0.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 33.8% 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
- 2013-03-01 11:00Z13 YR AGO
- Last updated
- 2024-08-06 23:00Z2 YR AGO
- Reserved
- 2011-06-15
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 0d6816be64ab211695826cb425a045190532fab387828360da8734c376bb961c
05 Affected products
VendorProductVersionsPlatforms
06 References
- ftp.osuosl.orghttp://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
- github.comhttps://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68f
- rhn.redhat.comRHSA-2011:1212http://rhn.redhat.com/errata/RHSA-2011-1212.html
- www.openwall.com[oss-security] 20110623 Re: CVE request: kernel: NLM: Don't hang forever on NLM unlock requestshttp://www.openwall.com/lists/oss-security/2011/06/23/6
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0b760113a3a155269a3fba93a409c640031dd68f
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=709393