CVE-2019-12499 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/netblue30/firejail/issues/2401 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CDY7B73YDRBURA25APSHD5PFEO4TNSFW/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGVULJ6IKVDO6UAVIQRHQVSKOUD6QDWM/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1