CVE-2021-29477: fallo de gravedad alta en redis
Vulnerability in the STRALGO LCS command
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 4.0%
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
redis · redisCVEs relacionadas — redis
En el mismo producto, de las más peligrosas a las menos.
CVE-2025-49844CRITICALRedis Lua Use-After-Free may lead to remote code executionEPSS 82.6%CVE-2023-36824HIGHHeap overflow in COMMAND GETKEYS and ACL evaluation in RedisEPSS 77.4%CVE-2023-22458MEDIUMInteger overflow in multiple Redis commands can lead to denial-of-serviceEPSS 72.0%CVE-2022-36021MEDIUMRedis string pattern matching can be abused to achieve Denial of ServiceEPSS 59.8%CVE-2023-28425MEDIUMSpecially crafted MSETNX command can lead to denial-of-serviceEPSS 58.5%CVE-2022-24834HIGHHeap overflow issue with the Lua cjson library used by RedisEPSS 41.4%
Referencias
https://github.com/redis/redis/security/advisories/GHSA-vqxj-26vj-996ghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHWOF7CBVUGDK3AN6H3BN3VNTH2TDUZZ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPWBIZXA67JFIB63W2CNVVILCGIC2ME5/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZJ6JGQ2ETZB2DWTQSGCOGG7EF3ILV4V/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SN7INTZFE34MIQJO7WDDTIY5LIBGN6GI/https://redis.io/https://security.gentoo.org/glsa/202107-20