redis-check-aof may lead to stack overflow and potential RCE

Vulnerability Description

Redis is an open source, in-memory database that persists on disk. In versions starting from 7.0.0 to before 8.0.2, a stack-based buffer overflow exists in redis-check-aof due to the use of memcpy with strlen(filepath) when copying a user-supplied file path into a fixed-size stack buffer. This allows an attacker to overflow the stack and potentially achieve code execution. This issue has been patched in version 8.0.2.

References

• https://github.com/redis/redis/security/advisories/GHSA-5453-q98w-cmvm
• https://github.com/redis/redis/commit/643b5db235cb82508e72f11c7b4bbfc7dc39be56
• https://github.com/redis/redis/releases/tag/8.0.2