Use After Free Affecting torvalds/linux package, versions [0,]


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-5660405
  • published29 May 2023
  • disclosed29 May 2023
  • creditUnknown

Introduced: 29 May 2023

CVE-2020-36694  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Use After Free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace.

References

CVSS Base Scores

version 3.1