CVE-2021-26910 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitre	CNA	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 15%

Vendor	Product	Version
firejail_project	firejail	𝑥 < 0.9.64.4
debian	debian_linux	9.0
debian	debian_linux	10.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

firejail

bullseye (security)	0.9.64.4-2+deb11u1 fixed
bullseye	0.9.64.4-2+deb11u1 fixed
sid	0.9.72-2 fixed
bookworm	0.9.72-2 fixed

Ubuntu Releases

Ubuntu Product

Codename

firejail

noble	not-affected
mantic	not-affected
lunar	not-affected
kinetic	not-affected
jammy	not-affected
impish	not-affected
hirsute	not-affected
groovy	ignored
focal	Fixed 0.9.62-3ubuntu0.1 released
bionic	needs-triage
xenial	needs-triage
trusty	dne

Known Exploits!

Common Weakness Enumeration

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state.

References

http://www.openwall.com/lists/oss-security/2021/02/09/1

https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b

https://github.com/netblue30/firejail/releases/tag/0.9.64.4

https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html

https://security.gentoo.org/glsa/202105-19

https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/

https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt

https://www.debian.org/security/2021/dsa-4849

http://www.openwall.com/lists/oss-security/2021/02/09/1

https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b

https://github.com/netblue30/firejail/releases/tag/0.9.64.4

https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html

https://security.gentoo.org/glsa/202105-19

https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/

https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt

https://www.debian.org/security/2021/dsa-4849