OS Command Injection Affecting runc package, versions <1.0.0_rc7-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
97.92% (100th percentile)

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  • Snyk IDSNYK-ALPINE323-RUNC-14184110
  • published4 Dec 2025
  • disclosed11 Feb 2019

Introduced: 11 Feb 2019

CVE-2019-5736  (opens in a new tab)
CWE-78  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 runc to version 1.0.0_rc7-r0 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 Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

References

CVSS Base Scores

version 3.1