Ubuntu Security Notice 5141-1 - Roman Fiedler discovered that a race condition existed in Firejail when using OverlayFS to prevent writes to the underlying file system. A local attacker could use this to gain administrative privileges. Note: this update disables support for OverlayFS in Firejail.
de9ac90127621c56848f354ec0b711d244e2e154a3857da22e4ef5b089d14623Gentoo Linux Security Advisory 202105-19 - A vulnerability was discovered in Firejail which may allow local attackers to gain root privileges. Versions less than 0.9.64.4 are affected.
5cc906f7093a150eaf1f6efd2d8dfe5fee11b4f7d26e2a386ed9d6465a8ba102Debian Linux Security Advisory 4849-1 - Roman Fiedler discovered a vulnerability in the OverlayFS code in firejail, a sandbox program to restrict the running environment of untrusted applications, which could result in root privilege escalation. This update disables OverlayFS support in firejail.
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