SB2022032326 - Use after free in Linux kernel
Published: March 23, 2022
Security Bulletin ID
SB2022032326
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) Use after free (CVE-ID: CVE-2021-4150)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue results from the lack of code cleanup when device_add call fails when adding a partition to the disk.
Remediation
Install update from vendor's website.