VDB
CVE-2021-26910
CVE-2021-26910
PUBLISHED
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.
EPSS 0.08% · 23.0th percentile
Risk Scores
EPSS Score
0.08%
23.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | firejail | 0, 0.9.28-1, 0.9.32-1 |
| Ubuntu:20.04:LTS | firejail | 0, 0.9.62-1, 0.9.62-2 |
| Ubuntu:18.04:LTS | firejail | 0.9.50-3, 0.9.52-1, 0.9.52-2 |
Exploit Intelligence
- http://www.openwall.com/lists/oss-security/2021/02/09/1 (nist-nvd)
- https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/ (nist-nvd)
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt (nist-nvd)
- DSA-4849 (circl)
- https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b (circl)
- https://github.com/netblue30/firejail/releases/tag/0.9.64.4 (circl)
- [debian-lts-announce] 20210211 [SECURITY] [DLA 2554-1] firejail security update (circl)
- GLSA-202105-19 (circl)
Timeline
- Feb 8, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-26910 third-party-advisory
- https://www.openwall.com/lists/oss-security/2021/02/08/5 third-party-advisory
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt third-party-advisory
- https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/ third-party-advisory
- http://www.openwall.com/lists/oss-security/2021/02/09/1 third-party-advisory
- https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b third-party-advisory
- https://github.com/netblue30/firejail/releases/tag/0.9.64.4 third-party-advisory
- https://ubuntu.com/security/notices/USN-5141-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-26910 third-party-advisory