DEBIAN-CVE-2024-21626

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2024-21626
Published: 31 Jan 2024, 22:15
Last modified:28 Apr 2026, 20:27

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.6 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

31 Jan 2024, 22:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:27
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.6CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Systems

  • debian•runc

    < 1.0.0~rc93+ds1-5+deb11u3 | < 1.1.5+ds1-1+deb12u1 | < 1.1.12+ds1-1 | < 1.1.12+ds1-1

References (1)