CVE-2021-26910

Name
CVE-2021-26910
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Patch https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b
Exploit https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt
Release Notes https://github.com/netblue30/firejail/releases/tag/0.9.64.4
Exploit https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/
Exploit http://www.openwall.com/lists/oss-security/2021/02/09/1
Third Party Advisory https://www.debian.org/security/2021/dsa-4849
Third Party Advisory https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html
GENTOO https://security.gentoo.org/glsa/202105-19

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:* firejail >= None < 0.9.64.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
firejail 3.13-community 0.9.64.4-r0 Stuart Cardall <developer@it-offshore.co.uk> fixed