SB2019082028 - NULL pointer dereference in Linux kernel
Published: August 20, 2019 Updated: September 5, 2019
Security Bulletin ID
SB2019082028
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2019-15216)
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.
Remediation
Install update from vendor's website.
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/