Directory Traversal Affecting runc package, versions <1.0.0~rc93+ds1-5


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-DEBIAN12-RUNC-1559253
  • published19 May 2021
  • disclosed27 May 2021

Introduced: 19 May 2021

CVE-2021-30465  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Debian:12 runc to version 1.0.0~rc93+ds1-5 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 Debian. See How to fix? for Debian:12 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 Scores

version 3.1