CVE Vulnerability

CVE-2021-26910

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.

6.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1

cpe:2.3:a:firejail_project:firejail:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2021-02-08 08:15

Updated : 2022-05-23 10:01

NVD link : CVE-2021-26910

Mitre link : CVE-2021-26910

Products Affected
No products.
CWE
CWE-367