SB2017101501 - Privilege escalation in Linux Kernel
Published: October 15, 2017 Updated: August 23, 2023
Security Bulletin ID
SB2017101501
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Privilege escalation (CVE-ID: CVE-2017-5123)
The vulnerability allows a local user to escalate privileges on the system.The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 does not check that the incoming argument points to the userspace. This can allow local users to write directly to kernel memory, which could lead to privilege escalation.
Remediation
Install update from vendor's website.