Operation on a Resource after Expiration or Release Affecting runc package, versions <0:1.0.0-59.dev.git2abd837.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.43% (76th percentile)

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  • Snyk IDSNYK-RHEL7-RUNC-5018382
  • published26 Jul 2021
  • disclosed11 Feb 2019

Introduced: 11 Feb 2019

CVE-2019-5736  (opens in a new tab)
CWE-672  (opens in a new tab)

How to fix?

Upgrade RHEL:7 runc to version 0:1.0.0-59.dev.git2abd837.el7 or higher.
This issue was patched in RHSA-2019:0303.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runc package and not the runc package as distributed by RHEL. See How to fix? for RHEL:7 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 Scores

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