OS Command Injection Affecting lxc package, versions <1:3.1.0+really3.0.3-4


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LXC-336911
  • published11 Feb 2019
  • 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 Debian:unstable lxc to version 1:3.1.0+really3.0.3-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lxc package and not the lxc package as distributed by Debian. See How to fix? for Debian:unstable 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