Time-of-check Time-of-use (TOCTOU) Affecting runc package, versions *


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-CENTOS8-RUNC-1964290
  • published26 Jul 2021
  • disclosed19 May 2021

Introduced: 19 May 2021

CVE-2021-30465  (opens in a new tab)
CWE-367  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 runc.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runc package and not the runc package as distributed by Centos. See How to fix? for Centos:8 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