NULL pointer dereference in Linux kernel - CVE-2019-15223
Published: August 20, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30813
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15223
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dreference error in sound/usb/line6/driver.c driver. A remote attacker can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2019-15223
Update to version 5.1.8.
Linux kernel - update to 5.1.8
External References
- http://www.openwall.com/lists/oss-security/2019/08/20/2
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b074ab7fc0d575247b9cc9f93bb7e007ca38840
- https://security.netapp.com/advisory/ntap-20190905-0002/
- https://syzkaller.appspot.com/bug?id=0c1e517c657d3de2361cb0cc2d3a8663c25039a7
- https://usn.ubuntu.com/4147-1/