CVE-2021-29477 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://redis.io/ https://github.com/redis/redis/security/advisories/GHSA-vqxj-26vj-996g https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZJ6JGQ2ETZB2DWTQSGCOGG7EF3ILV4V/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPWBIZXA67JFIB63W2CNVVILCGIC2ME5/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SN7INTZFE34MIQJO7WDDTIY5LIBGN6GI/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BHWOF7CBVUGDK3AN6H3BN3VNTH2TDUZZ/ https://security.gentoo.org/glsa/202107-20

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8