TOCTOU Race Condition in Firejail Allows Access Restriction Bypass

TOCTOU Race Condition in Firejail Allows Access Restriction Bypass

CVE-2021-26910 · HIGH Severity

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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