cve/2019/CVE-2019-19807.md

CVE-2019-19807

Description

In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The timeri variable was originally intended to be for a newly created timer instance, but was used for a different purpose after refactoring.

POC

Reference

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.11

Github

• https://github.com/ARPSyndicate/cvemon