CVE-2011-2491
UnknownEPSS 0.40%
Last modified
CVE-2011-2491 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.0 |
| Redhat | Enterprise Linux Desktop | 5.0 |
| Redhat | Enterprise Linux Server | 5.0 |
| Redhat | Enterprise Linux Workstation | 5.0 |
References
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/23/6Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=709393Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68fPatch, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/23/6Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=709393Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68fPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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 system call.
How severe is CVE-2011-2491?
Severity scoring for CVE-2011-2491 is pending analysis. The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2011-2491?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Scan your code nowSource: NVD / NIST