Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| 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 |
Related Weaknesses (CWE)
References
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/23/6Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=709393Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68PatchThird Party Advisory
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0Broken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/23/6Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=709393Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/0b760113a3a155269a3fba93a409c640031dd68PatchThird Party Advisory
FAQ
What is CVE-2011-2491?
CVE-2011-2491 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 ...
How severe is CVE-2011-2491?
CVE-2011-2491 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2491?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.