SB20240608169 - NULL pointer dereference in Linux kernel s390 net driver
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608169
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) NULL pointer dereference (CVE-ID: CVE-2021-47369)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the qeth_clear_working_pool_list() function in drivers/s390/net/qeth_core_main.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/db94f89e1dadf693c15c2d60de0c34777cea5779
- https://git.kernel.org/stable/c/9b00fb12cdc9d8d1c3ffe82a78e74738127803fc
- https://git.kernel.org/stable/c/248f064af222a1f97ee02c84a98013dfbccad386
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.70
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15