SB2024062462 - Buffer overflow in Linux kernel modules hdcp driver
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062462
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) Buffer overflow (CVE-ID: CVE-2021-47348)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the validate_bksv() function in drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_execution.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/c5b518f4b98dbb2bc31b6a55e6aaa1e0e2948f2e
- https://git.kernel.org/stable/c/44c7c901cb368a9f2493748f213b247b5872639f
- https://git.kernel.org/stable/c/3b2b93a485fb7a970bc8b5daef16f4cf579d172f
- https://git.kernel.org/stable/c/06888d571b513cbfc0b41949948def6cb81021b2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.51
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14