CVE-2023-27561 Opencontainers runc Incorrect Authorization vulnerability

What is CVE-2023-27561?

CVE-2023-27561 is a high-severity vulnerability in Debian Debian Linux, published on 3 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

runc through 1.1.4 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. NOTE: this issue exists because of a CVE-2019-19921 regression.

Weakness: CWE-706

Which versions are affected by CVE-2023-27561?

3 open source packages ship an affected version, including github.com/opencontainers/runc. It affects 4 products.

Products include Debian Debian Linux, Linuxfoundation Runc, Redhat Enterprise Linux, Redhat Openshift Container Platform.

How do I fix CVE-2023-27561?

Upgrade github.com/opencontainers/runc to 1.1.5 or later.

Is CVE-2023-27561 being exploited?

There is no known exploitation of CVE-2023-27561 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-25574, CLEANSTART-2026-IS70911, DEBIAN-CVE-2023-27561, GHSA-vpvm-3wq2-2wvm, GO-2023-1627, UBUNTU-CVE-2023-27561 and 1 more.