LSN-0080-1

Advisory lineage Upstream: 2 Downstream: 0
Published: 16 Aug 2021, 12:04
Last modified:03 Jun 2026, 13:33

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Aug 2021, 12:04
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated

Description

Kernel Live Patch Security Notice Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

Affected Systems

  • ubuntu•linux

    all | < 4.4.0-213.245 | < 4.15.0-144.148 | < 5.4.0-74.83

  • ubuntu•linux-gcp

    all | < 5.4.0-1044.47

  • ubuntu•linux-gke

    all | < 5.4.0-1044.46

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    all | < 5.4.0-1044.46~18.04.1

  • ubuntu•linux-gkeop

    all | < 5.4.0-1016.17

  • ubuntu•linux-gkeop-5.4

    all | < 5.4.0-1016.17~18.04.1

  • ubuntu•linux-hwe

    all | < 4.15.0-144.148~16.04.1

  • ubuntu•linux-hwe-5.4

    all | < 5.4.0-74.83~18.04.1

  • ubuntu•linux-lts-xenial

    all | < 4.4.0-213.245~14.04.1

  • ubuntu•linux-oem

    all

References (2)