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

0.0
high

  • Attack Complexity

    Low

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  • snyk-id

    SNYK-GOLANG-GITHUBCOMOPENCONTAINERSRUNCLIBCONTAINER-2309909

  • published

    6 Dec 2021

  • disclosed

    6 Dec 2021

  • credit

    Felix Wilhelm

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Introduced: 6 Dec 2021

CVE-2021-43784 Open this link in a new tab
CWE-119 Open this link in a new tab
CWE-120 Open this link 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.