SB20240531535 - NULL pointer dereference in Linux kernel char ipmi driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531535
CSH 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 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2021-47095)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ssif_probe() function in drivers/char/ipmi/ipmi_ssif.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/8efd6a3391f7b0b19fb0c38e50add06ca30c94af
- https://git.kernel.org/stable/c/1f6ab847461ce7dd89ae9db2dd4658c993355d7c
- https://git.kernel.org/stable/c/77a7311ca167aa5b7055c549a940a56e73ee5f29
- https://git.kernel.org/stable/c/34f35f8f14bc406efc06ee4ff73202c6fd245d15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.89
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.169