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CVE-2019-12499 Affecting firejail package, versions *

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.35% (72nd percentile)

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  • Snyk IDSNYK-UBUNTU1804-FIREJAIL-543072
  • published31 May 2019
  • disclosed31 May 2019
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Introduced: 31 May 2019

CVE-2019-12499  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 firejail.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firejail package and not the firejail package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

Firejail before 0.9.60 allows truncation (resizing to length 0) of the firejail binary on the host by running exploit code inside a firejail sandbox and having the sandbox terminated. To succeed, certain conditions need to be fulfilled: The jail (with the exploit code inside) needs to be started as root, and it also needs to be terminated as root from the host (either by stopping it ungracefully (e.g., SIGKILL), or by using the --shutdown control command). This is similar to CVE-2019-5736.