Use-after-free in Linux kernel - CVE-2019-15211
Published: September 3, 2019
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists in the Raremono AM/FM/SW radio device driver in "drivers/media/v4l2-core/v4l2-dev.c" driver due to a use-after-free error when the "drivers/media/radio/radio-raremono.c" does not properly allocate memory. An authenticated local user with physical access to the system can use a malicious USB device to cause a denial of service or possibly execute arbitrary code.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
How to mitigate CVE-2019-15211
Sources
- http://www.openwall.com/lists/oss-security/2019/08/20/2
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c666355e60ddb4748ead3bdd983e3f7f2224aaf0
- https://syzkaller.appspot.com/bug?id=775f90f43cfd6f8ac6c15251ce68e604453da226
- https://usn.ubuntu.com/4115-1/
- https://usn.ubuntu.com/4118-1/