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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…
Medium4.9EPSS 0.40%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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 system call.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.40% · top 66% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Weakness
Affected products
n/a
- affected n/a
References (6)
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68f (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2011:1212 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20110623 Re: CVE request: kernel: NLM: Don't hang forever on NLM unlock requests (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0b760113a3a155269a3fba93a409c640031dd68f (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=709393 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .