Use-after-free in Linux kernel - CVE-2019-15211

Vulnerability details

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.

Affected software

How to mitigate CVE-2019-15211

External References

• 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/

Related Security Bulletins

• Use-after-free in Linux kernel
• RSA Authentication Manager update for third-party components