Description
Firejail before 0.9.64.4 allows attackers to bypass intended access restrictions because there is a TOCTOU race condition between a stat operation and an OverlayFS mount operation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b ↗
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt ↗
- https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/ ↗
- https://github.com/netblue30/firejail/releases/tag/0.9.64.4 ↗
- http://www.openwall.com/lists/oss-security/2021/02/09/1 ↗
- https://www.debian.org/security/2021/dsa-4849 ↗
- https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html ↗
- https://security.gentoo.org/glsa/202105-19 ↗