CVE-2016-5195
canonical ubuntu linux, linux kernel, redhat enterprise linux
Published 10 Nov 2016 · updated 17 Jun 2026 · Analyzed
7.0 High · CVSS 3.1, NVD
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 3 Mar 2022, with a remediation deadline of 24 Mar 2022 for US federal agencies.
Required action: Apply updates per vendor instructions.
Description
Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."
References
- fortiguard.com/advisory/FG-IR-16-063 · Third Party Advisory
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 · Issue Tracking, Patch, Vendor Advisory
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10770 · Third Party Advisory
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10774 · Third Party Advisory
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10807 · Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00034.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00035.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00036.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00038.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00039.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00040.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00045.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00048.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00049.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00050.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00051.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00052.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00053.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00054.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00055.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00056.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00057.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00058.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00063.html · Mailing List
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00064.html · Mailing List