CVE-2014-3122

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.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/67162 third party advisory vdb entry
http://www.openwall.com/lists/oss-security/2014/05/01/7 patch mailing list third party advisory
https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c third party advisory patch
http://www.ubuntu.com/usn/USN-2240-1 third party advisory vendor advisory
http://secunia.com/advisories/59386 third party advisory broken link
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 patch vendor advisory mailing list
http://secunia.com/advisories/59599 third party advisory broken link
http://www.debian.org/security/2014/dsa-2926 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1093076 patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2014-3122?
CVE-2014-3122 has been scored as a medium severity vulnerability.
How to fix CVE-2014-3122?
To fix CVE-2014-3122, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-3122 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-3122 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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