CVE-2021-26910
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.9%
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 configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| firejail_project:firejail | firejail project firejail | lt | 0.9.64.4 |
References
www.openwall.com/lists/oss-security/2021/02/09/1
github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b
github.com/netblue30/firejail/releases/tag/0.9.64.4
lists.debian.org/debian-lts-announce/2021/02/msg00015.html
security.gentoo.org/glsa/202105-19
unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/
unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt
www.debian.org/security/2021/dsa-4849
Social References
More
Related
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.9%