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CVE-2021-32627

Description

Redis is an open source, in-memory database that persists on disk. In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default proto-max-bulk-len and client-query-buffer-limit configuration parameters to very large values and constructing specially crafted very large stream elements. The problem is fixed in Redis 6.2.6, 6.0.16 and 5.0.14. For users unable to upgrade an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the proto-max-bulk-len configuration parameter. 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
0.795

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