SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2016-5195

Linux Kernel Race Condition Vulnerability

KEVHIGH 7.0EPSS 83.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 24 March 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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."

CVSS 3.1
7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
83.52% probability · 100th percentile
CISA KEV
Listed 3 March 2022 · due 24 March 2022
Weakness
CWE-362
Affected
canonical/ubuntu linux · linux/linux kernel · redhat/enterprise linux · redhat/enterprise linux aus · redhat/enterprise linux eus · redhat/enterprise linux long life · redhat/enterprise linux tus · debian/debian linux · fedoraproject/fedora · paloaltonetworks/pan-os · netapp/cloud backup · netapp/hci storage nodes · netapp/oncommand balance · netapp/oncommand performance manager · netapp/oncommand unified manager for clustered data ontap · netapp/ontap select deploy administration utility · netapp/snapprotect · netapp/solidfire
Source
chrome-cve-admin@google.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2016-5195

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.