Use-after-free in Linux kernel - CVE-2019-15215

Vulnerability details

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the CPiA2 video4linux device driver in the "drivers/media/usb/cpia2/cpia2_usb.c" driver. A local authenticated user with physical access to the system can use a malicious USB device and cause a denial of service (system crash) or possibly execute arbitrary code.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Affected software

How to mitigate CVE-2019-15215

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=eff73de2b1600ad8230692f00bc0ab49b166512a
• https://syzkaller.appspot.com/bug?id=b68d3c254cf294f8a802582094fa3251d6de5247
• 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