Vulnerability Details : CVE-2014-3122
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.
Vulnerability category: Denial of service
Products affected by CVE-2014-3122
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-3122
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-3122
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
CWE ids for CVE-2014-3122
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-3122
-
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=57e68e9cd65b4b8eb4045a1e0d0746458502554c
-
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3
Mailing List;Patch;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2014/05/01/7
oss-security - Re: CVE request Linux kernel: mm: try_to_unmap_cluster() should lock_page() before mlockingMailing List;Patch;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1093076
1093076 – (CVE-2014-3122) CVE-2014-3122 Kernel: mm: try_to_unmap_cluster() should lock_page() before mlockingIssue Tracking;Patch;Third Party Advisory
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http://www.debian.org/security/2014/dsa-2926
Debian -- Security Information -- DSA-2926-1 linuxThird Party Advisory
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http://www.ubuntu.com/usn/USN-2240-1
USN-2240-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.securityfocus.com/bid/67162
Linux Kernel 'mlock_vma_page()' Function Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c
mm: try_to_unmap_cluster() should lock_page() before mlocking · torvalds/linux@57e68e9 · GitHubPatch;Third Party Advisory
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