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Debian 9 Stretch DLA-2554-1 Critical: Firejail OverlayFS Escalation Fix

debian lts
Calendar Grey February 11, 2021
Dist Debian Esm H88
A recent security update for Firejail on Debian LTS mitigates a privilege escalation risk linked to an OverlayFS weakness—users are advised to apply this update promptly.
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 r...
Topics%20covered

Topics Covered

security advisory security issue critical debian privilege escalation security patch firejail overlayfs

Summary

For Debian 9 stretch, this problem has been fixed in version
0.9.44.8-2+deb9u2.

We recommend that you upgrade your firejail packages.

For the detailed security status of firejail please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/firejail

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: firejail
Version: 0.9.44.8-2+deb9u2
CVE ID: CVE-2021-26910

Topics%20covered

Topics Covered

security advisory security issue critical debian privilege escalation security patch firejail overlayfs

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