9.3
CVSSv2

CVE-2019-12499

Published: 31/05/2019 Updated: 07/11/2023
CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2
VMScore: 828
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

Firejail prior to 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.

Vulnerability Trend

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firejail project firejail

Vendor Advisories

Debian Bug report logs - #929733 firejail: CVE-2019-12499: binary can be truncated by root under certain conditions Package: src:firejail; Maintainer for src:firejail is Reiner Herrmann <reiner@reiner-hde>; Reported by: Reiner Herrmann <reiner@reiner-hde> Date: Wed, 29 May 2019 17:24:02 UTC Severity: important Tags ...