SB2021032635 - Security restrictions bypass in Linux kernel
Published: March 26, 2021 Updated: December 24, 2021
Security Bulletin ID
SB2021032635
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Initialization (CVE-ID: CVE-2020-35508)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper initialization of the process id in the Linux kernel child/parent process identification handling while filtering signal handlers. A local user can run a specially crafted application to bypass checks to send any signal to a privileged process.
Remediation
Install update from vendor's website.