Denial of Service (DoS) Affecting netblue30/firejail package, versions [,0.9.60)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.03% (79th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-NETBLUE30FIREJAIL-2369388
  • published26 Jan 2022
  • disclosed31 May 2019
  • creditUnknown

Introduced: 31 May 2019

CVE-2019-12499  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade netblue30/firejail to version 0.9.60 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). 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.

References

CVSS Base Scores

version 3.1