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CVE-2021-32628

Description

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.

Risk Information

Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.586

Associated Vulnerability

VulnerabilityOS Platform
Multiple vulnerabilities affected in Redis 5.0.9Windows
Redis update (ELSA-2021-3918) redis-5.0.3-5.module+el8.4.0+20382+7694043a.x86_64.rpmLinux
Redis-devel update (ELSA-2021-3918) redis-devel-5.0.3-5.module+el8.4.0+20382+7694043a.x86_64.rpmLinux
Redis-doc update (ELSA-2021-3918) redis-doc-5.0.3-5.module+el8.4.0+20382+7694043a.noarch.rpmLinux
(RHSA-2021:3918) redis:5 security update redis-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpmLinux
(RHSA-2021:3918) redis:5 security update redis-debugsource-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpmLinux
(RHSA-2021:3918) redis:5 security update redis-devel-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpmLinux
(RHSA-2021:3918) redis:5 security update redis-doc-5.0.3-5.module+el8.4.0+12927+b9845322.noarch.rpmLinux
(RHSA-2021:3945) redis:6 security update redis-6.0.9-5.module+el8.4.0+12929+1bb0d2aa.x86_64.rpmLinux
(RHSA-2021:3945) redis:6 security update redis-debugsource-6.0.9-5.module+el8.4.0+12929+1bb0d2aa.x86_64.rpmLinux
(RHSA-2021:3945) redis:6 security update redis-devel-6.0.9-5.module+el8.4.0+12929+1bb0d2aa.x86_64.rpmLinux
(RHSA-2021:3945) redis:6 security update redis-doc-6.0.9-5.module+el8.4.0+12929+1bb0d2aa.noarch.rpmLinux
Redis update (ELSA-2021-3945) redis-6.0.9-5.module+el8.4.0+20384+68ad316c.x86_64.rpmLinux
Redis-devel update (ELSA-2021-3945) redis-devel-6.0.9-5.module+el8.4.0+20384+68ad316c.x86_64.rpmLinux
Redis-doc update (ELSA-2021-3945) redis-doc-6.0.9-5.module+el8.4.0+20384+68ad316c.noarch.rpmLinux
redis security update(DSA-5001-1) redis_5.0.14-1+deb10u1_all.debLinux
redis security update(DSA-5001-1) redis_6.0.16-1+deb11u1_all.debLinux
Multiple vulnerabilities affected in Redis 5.0.9 (For Linux)Linux
(RHSA-2021:3918)Important: security update redis-debuginfo-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpmLinux
Important: redis:5 security update redis-5.0.3-5.module_el8.4.0+2583+b9845322.x86_64.rpmLinux
Important: redis:5 security update redis-devel-5.0.3-5.module_el8.4.0+2583+b9845322.x86_64.rpmLinux
Important: redis:5 security update redis-doc-5.0.3-5.module_el8.4.0+2583+b9845322.noarch.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234