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Debian: Security Advisory for firejail (DSA-4742-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'firejail' package(s) announced via the DSA-4742-1 advisory.
Insight
Insight
Tim Starling discovered two vulnerabilities in firejail, a sandbox program to restrict the running environment of untrusted applications. CVE-2020-17367 It was reported that firejail does not respect the end-of-options separator ('--'), allowing an attacker with control over the command line options of the sandboxed application, to write data to a specified file. CVE-2020-17368 It was reported that firejail when redirecting output via --output or --output-stderr, concatenates all command line arguments into a single string that is passed to a shell. An attacker who has control over the command line arguments of the sandboxed application could take advantage of this flaw to run run arbitrary other commands.
Affected Software
Affected Software
'firejail' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), these problems have been fixed in version 0.9.58.2-2+deb10u1. We recommend that you upgrade your firejail packages.