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Debian: Security Advisory for firejail (DSA-4742-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

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.

Common Vulnerabilities and Exposures (CVE)