Debian Security Advisory

DSA-4849-1 firejail -- security update

Date Reported:
09 Feb 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-26910.
More information:

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.

For the stable distribution (buster), this problem has been fixed in version

We recommend that you upgrade your firejail packages.

For the detailed security status of firejail please refer to its security tracker page at: