CVE-2021-26910
firejail - security update
7.0
HIGH
CVSS 3.1
EPSS 0.08%
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.
How to fix CVE-2021-26910
To remediate CVE-2021-26910, upgrade the affected package to a fixed version below.
- Debian/firejail—upgrade to 0.9.64.4-1 or later
- —upgrade to 0.9.44.8-2+deb9u2 or later
- —upgrade to 0.9.58.2-2+deb10u2 or later
Is CVE-2021-26910 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.9.64.4-1
- from 0, < 0.9.44.8-2+deb9u2
- from 0, < 0.9.58.2-2+deb10u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |