Buffer Overflow Affecting github.com/opencontainers/runc/libcontainer package, versions <1.0.3


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.4% (74th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMOPENCONTAINERSRUNCLIBCONTAINER-2309909
  • published6 Dec 2021
  • disclosed6 Dec 2021
  • creditFelix Wilhelm

Introduced: 6 Dec 2021

CVE-2021-43784  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade github.com/opencontainers/runc/libcontainer to version 1.0.3 or higher.

Overview

github.com/opencontainers/runc/libcontainer is a package for a modern container runtime.

Affected versions of this package are vulnerable to Buffer Overflow when writing netlink messages. It is possible to have a byte array larger than UINT16_MAX which would result in the length field overflowing and allowing user-controlled data to be parsed as control characters.

CVSS Scores

version 3.1