runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-01-31T21:31:14.391Z
Updated: 2024-08-19T07:48:05.378Z
Reserved: 2023-12-29T03:00:44.953Z
Link: CVE-2024-21626
Vulnrichment
No data.
NVD
Status : Modified
Published: 2024-01-31T22:15:53.780
Modified: 2024-02-19T03:15:08.413
Link: CVE-2024-21626
Redhat