CWE-403
Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')
A process does not close sensitive file descriptors before invoking a child process, which allows the child to perform unauthorized I/O operations using those descriptors.
CVE-2024-21626 (GCVE-0-2024-21626)
Vulnerability from cvelistv5
Published
2024-01-31 21:31
Modified
2025-05-15 16:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| opencontainers | runc |
Version: >=v1.0.0-rc93, < 1.1.12 |
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.