Dirty COW — Linux Linux_kernel Vulnerability
CVE-2016-5195
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…
Vulnerability class: Race Condition
EPSS: 0.835 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- chrome-cve-admin@google.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- chrome-cve-admin@google.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory, Broken Link)
- chrome-cve-admin@google.com (Permissions Required, x_refsource_CONFIRM, Third Party Advisory)
- chrome-cve-admin@google.com (x_refsource_CONFIRM, Third Party Advisory)
- chrome-cve-admin@google.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- chrome-cve-admin@google.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- chrome-cve-admin@google.com (Third Party Advisory, x_refsource_MISC)
- chrome-cve-admin@google.com (VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- chrome-cve-admin@google.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-5195?
- CVE-2016-5195 is a high-severity vulnerability in Linux Linux_kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2016-11-10.
- How severe is CVE-2016-5195?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2016-5195 known to be exploited?
- Yes. CVE-2016-5195 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 555 public proof-of-concept repositories are indexed.