Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
History

Sun, 08 Sep 2024 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.2::el7
cpe:/a:redhat:acm:2.4::el8

Mon, 19 Aug 2024 22:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.2::el8
cpe:/a:redhat:acm:2.4::el8

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-10-04T17:30:11

Updated: 2024-08-03T23:25:30.986Z

Reserved: 2021-05-12T00:00:00

Link: CVE-2021-32626

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-04T18:15:08.140

Modified: 2023-11-07T03:35:19.357

Link: CVE-2021-32626

cve-icon Redhat

Severity : Important

Publid Date: 2021-10-04T00:00:00Z

Links: CVE-2021-32626 - Bugzilla