SB2020081823 - Ubuntu update for linux-gke-5.0
Published: August 18, 2020 Updated: April 23, 2025
Security Bulletin ID
SB2020081823
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) Input validation error (CVE-ID: CVE-2020-12771)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a deadlock if a coalescing operation fails in "btree_gc_coalesce" in "drivers/md/bcache/btree.c" file. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.