vulnerability
Red Hat: CVE-2021-29477: CVE-2021-29477 redis: Integer overflow via STRALGO LCS command (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:P/I:P/A:P) | May 4, 2021 | May 21, 2021 | Aug 11, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
May 4, 2021
Added
May 21, 2021
Modified
Aug 11, 2025
Description
Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer could be exploited using the `STRALGO LCS` command to corrupt the heap and potentially result with remote code execution. The problem is fixed in version 6.2.3 and 6.0.13. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the `STRALGO LCS` command.
Solutions
redhat-upgrade-redisredhat-upgrade-redis-debuginforedhat-upgrade-redis-debugsourceredhat-upgrade-redis-develredhat-upgrade-redis-doc
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