Vulnerabilities > CVE-2021-32628

Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Vulnerable Configurations

Part	Description	Count
Application	Redis Redis Redis 6.2.0 Redis Redis 6.2.1 Redis Redis 6.2.2 Redis Redis 6.2.3 Redis Redis 6.2.4 Redis Redis 6.2.5 Redis Redis 6.0.0 Redis Redis 6.0.1 Redis Redis 6.0.2 Redis Redis 6.0.3 Redis Redis 6.0.4 Redis Redis 6.0.5 Redis Redis 6.0.6 Redis Redis 6.0.7 Redis Redis 6.0.8 Redis Redis 6.0.9 Redis Redis 6.0.10 Redis Redis 6.0.11 Redis Redis 6.0.12 Redis Redis 6.0.13 Redis Redis 6.0.14 Redis Redis 6.0.15 Redis Redis 5.0.0 Redis Redis 5.0.1 Redis Redis 5.0.2 Redis Redis 5.0.3 Redis Redis 5.0.4 Redis Redis 5.0.5 Redis Redis 5.0.6 Redis Redis 5.0.7 Redis Redis 5.0.8 Redis Redis 5.0.9 Redis Redis 5.0.10 Redis Redis 5.0.11 Redis Redis 5.0.12 Redis Redis 5.0.13	36
Application	Netapp Netapp Management Services FOR Element Software - Netapp Management Services FOR Netapp HCI -	2
Application	Oracle Oracle Communications Operations Monitor 4.3 Oracle Communications Operations Monitor 4.4 Oracle Communications Operations Monitor 5.0	3
OS	Fedoraproject Fedoraproject Fedora 33 Fedoraproject Fedora 34 Fedoraproject Fedora 35	3
OS	Debian Debian Debian Linux 10.0 Debian Debian Linux 11.0	2

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Summary

Vulnerable Configurations

References

Vulnerabilities > CVE-2021-32628