Headline
CVE-2023-36824: Heap overflow in COMMAND GETKEYS and ACL evaluation
Redis is an in-memory database that persists on disk. In Redit 7.0 prior to 7.0.12, extracting key names from a command and a list of arguments may, in some cases, trigger a heap overflow and result in reading random heap memory, heap corruption and potentially remote code execution. Several scenarios that may lead to authenticated users executing a specially crafted COMMAND GETKEYS or COMMAND GETKEYSANDFLAGSand authenticated users who were set with ACL rules that match key names, executing a specially crafted command that refers to a variadic list of key names. The vulnerability is patched in Redis 7.0.12.
Impact
Extracting key names from a command and a list of arguments may, in some cases, trigger a heap overflow and result in reading random heap memory, heap corruption and potentially remote code execution. Several scenarios that may lead to this result:
- Authenticated users executing a specially crafted COMMAND GETKEYS or COMMAND GETKEYSANDFLAGS.
- Authenticated users who were set with ACL rules that match key names, executing a specially crafted command that refers to a variadic list of key names.
The problem exists in Redis 7.0 or newer.
Patches
The problem is fixed in Redis 7.0.12.
Credit
The problem was found by Lior Lahav.
For more information
If you have any questions or comments about this advisory:
- Open an issue in the Redis repository
- Email us at [email protected]
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