Race Condition Affecting runc package, versions <1.0.2-23.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
6.6% (93rd percentile)

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  • Snyk IDSNYK-SLES151-RUNC-2659907
  • published14 Apr 2022
  • disclosed25 Oct 2021

Introduced: 25 Oct 2021

CVE-2021-30465  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 runc to version 1.0.2-23.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runc package and not the runc package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

CVSS Base Scores

version 3.1