Vulnerability Description
The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.14.3 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://secunia.com/advisories/59386Broken Link
- http://secunia.com/advisories/59599Broken Link
- http://www.debian.org/security/2014/dsa-2926Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3Mailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2014/05/01/7Mailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/67162Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2240-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1093076Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554PatchThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://secunia.com/advisories/59386Broken Link
- http://secunia.com/advisories/59599Broken Link
- http://www.debian.org/security/2014/dsa-2926Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3Mailing ListPatchVendor Advisory
FAQ
What is CVE-2014-3122?
CVE-2014-3122 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system cr...
How severe is CVE-2014-3122?
CVE-2014-3122 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-2014-3122?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Debian Debian Linux.