NULL pointer dereference in Linux kernel - CVE-2019-15216
Published: September 5, 2019
Vulnerability identifier: #VU20892
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15216
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in drivers/usb/misc/yurex.c driver. A local user can use a malicious USB device to perform denial of service (DoS) attack.
Affected software
Linux kernel
RSA Authentication Manager
RSA Authentication Manager
How to mitigate CVE-2019-15216
Install update from vendor's website.
Linux kernel - update to 5.0.14
RSA Authentication Manager - update to 8.4 Patch 9
RSA Authentication Manager - update to 8.4 Patch 9
External References
- http://www.openwall.com/lists/oss-security/2019/08/20/2
- http://www.openwall.com/lists/oss-security/2019/08/22/2
- http://www.openwall.com/lists/oss-security/2019/08/22/3
- http://www.openwall.com/lists/oss-security/2019/08/22/4
- http://www.openwall.com/lists/oss-security/2019/08/22/5
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.14
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef61eb43ada6c1d6b94668f0f514e4c268093ff3
- https://syzkaller.appspot.com/bug?id=f0b1f2952022c75394c0eef2afeb17af90f9227e
- https://usn.ubuntu.com/4115-1/
- https://usn.ubuntu.com/4118-1/