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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | runc | < 1.1.5+ds1-1+deb12u1 | runc_1.1.5+ds1-1+deb12u1_all.deb |
Debian | 11 | all | runc | < 1.0.0~rc93+ds1-5+deb11u3 | runc_1.0.0~rc93+ds1-5+deb11u3_all.deb |
Debian | 10 | all | runc | < 1.0.0~rc6+dfsg1-3+deb10u3 | runc_1.0.0~rc6+dfsg1-3+deb10u3_all.deb |
Debian | 999 | all | runc | < 1.1.12+ds1-1 | runc_1.1.12+ds1-1_all.deb |
Debian | 13 | all | runc | < 1.1.12+ds1-1 | runc_1.1.12+ds1-1_all.deb |