Vulnerability Details CVE-2021-29478
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 6.2 before 6.2.3 could be exploited to corrupt the heap and potentially result with remote code execution. Redis 6.0 and earlier are not directly affected by this issue. The problem is fixed in version 6.2.3. An additional workaround to mitigate the problem without patching the `redis-server` executable is to prevent users from modifying the `set-max-intset-entries` configuration parameter. This can be done using ACL to restrict unprivileged users from using the `CONFIG SET` command.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 65.4%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 6.0
References
- https://github.com/redis/redis/security/advisories/GHSA-qh52-crrg-44g3
- 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://redis.io/
- https://security.gentoo.org/glsa/202107-20
- https://github.com/redis/redis/security/advisories/GHSA-qh52-crrg-44g3
- 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://redis.io/
- https://security.gentoo.org/glsa/202107-20
Products affected by CVE-2021-29478
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cpe:2.3:a:redislabs:redis:6.2.0
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cpe:2.3:a:redislabs:redis:6.2.1
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cpe:2.3:a:redislabs:redis:6.2.2
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34