SB2021110951 - Ubuntu update for linux
Published: November 9, 2021
Security Bulletin ID
SB2021110951
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2021-3759)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists in the Linux kernel’s ipc functionality of the memcg subsystem when user calls the semget function multiple times, creating semaphores. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.