Heap-based buffer overflow in Redis - CVE-2023-36824
Published: July 21, 2023
Vulnerability identifier: #VU78507
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-36824
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Redis Labs
Affected software:
Redis
Redis
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when extracting key names from a command and a list of arguments. A local user can execute the "COMMAND GETKEYS" or "COMMAND GETKEYSANDFLAGS" commands or execute a specially crafted command that refers to a variadic list of key names along with ACL rules that match key names to trigger a heap-based buffer overflow and execute arbitrary code on the target system.
How to mitigate CVE-2023-36824
Install updates from vendor's website.
Sources
- https://github.com/redis/redis/security/advisories/GHSA-4cfx-h9gq-xpx3
- https://github.com/redis/redis/releases/tag/7.0.12
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TDNNH2ONMVNBQ6LUIAOAGDNFPKXNST5K/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MIF5MAGYARYUMRFK7PQI7HYXMK2HZE5T/