Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.0463
firejail security update
10 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: firejail
Publisher: Debian
Operating System: Debian GNU/Linux
Linux variants
Impact/Access: Root Compromise -- Existing Account
Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-26910
Original Bulletin:
http://www.debian.org/security/2021/dsa-4849
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running firejail check for an updated version of the software for
their operating system.
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Debian Security Advisory DSA-4849-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 09, 2021 https://www.debian.org/security/faq
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Package : firejail
CVE ID : CVE-2021-26910
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 0.9.58.2-2+deb10u2.
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/firejail
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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