SB20240530135 - Memory leak in Linux kernel allwinner sun8i-ss driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530135
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) Memory leak (CVE-ID: CVE-2021-47057)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the sun8i_ss_prng_generate() and memcpy() functions in drivers/crypto/allwinner/sun8i-ss/sun8i-ss-prng.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/617ec35ed51f731a593ae7274228ef2cfc9cb781
- https://git.kernel.org/stable/c/e1f2d739849c3239df1ea3f97d40bade4b808410
- https://git.kernel.org/stable/c/6516cb852d704ff8d615de1f93cd443a99736c3d
- https://git.kernel.org/stable/c/98b5ef3e97b16eaeeedb936f8bda3594ff84a70e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13