CVE-2021-26910
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-26910
Vendor advisory: arch — https://security.archlinux.org/ASA-202102-26
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 0.9.64.4-1 | |
| debian | bookworm | fixed | 0.9.64.4-1 |
| debian | bullseye | fixed | 0.9.64.4-1 |
| debian | forky | fixed | 0.9.64.4-1 |
| debian | sid | fixed | 0.9.64.4-1 |
| debian | trixie | fixed | 0.9.64.4-1 |
References
Verify integrity in audit chain (admin only). AS-IS.