High severity7.5NVD Advisory· Published May 4, 2021· Updated Jun 17, 2026
CVE-2021-29477
CVE-2021-29477
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- osv-coords4 versionspkg:rpm/opensuse/redis&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/redis&distro=openSUSE%20Tumbleweedpkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/redis&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3
< 6.0.13-lp152.2.3.1+ 3 more
- (no CPE)range: < 6.0.13-lp152.2.3.1
- (no CPE)range: < 6.2.5-1.2
- (no CPE)range: < 6.0.13-1.10.1
- (no CPE)range: < 6.0.13-1.10.1
Patches
Vulnerability mechanics
References
7- github.com/redis/redis/security/advisories/GHSA-vqxj-26vj-996gnvdThird Party Advisory
- security.gentoo.org/glsa/202107-20nvdThird Party Advisory
- redis.ionvdProduct
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHWOF7CBVUGDK3AN6H3BN3VNTH2TDUZZ/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPWBIZXA67JFIB63W2CNVVILCGIC2ME5/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZJ6JGQ2ETZB2DWTQSGCOGG7EF3ILV4V/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SN7INTZFE34MIQJO7WDDTIY5LIBGN6GI/nvd
News mentions
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