CVE-2021-32627

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredLOW

User InteractionNONE

Published10/4/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxfedoraproject:fedoranetapp:management_services_for_element_softwarenetapp:management_services_for_netapp_hcioracle:communications_operations_monitorredis:redis

Weaknesses (CWE)

CWE-190CWE-680CWE-190

References

https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3(security-advisories@github.com)

https://github.com/redis/redis/security/advisories/GHSA-f434-69fm-g45v(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/(security-advisories@github.com)

https://security.gentoo.org/glsa/202209-17(security-advisories@github.com)

https://security.netapp.com/advisory/ntap-20211104-0003/(security-advisories@github.com)

https://www.debian.org/security/2021/dsa-5001(security-advisories@github.com)

https://www.oracle.com/security-alerts/cpuapr2022.html(security-advisories@github.com)

https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/redis/redis/security/advisories/GHSA-f434-69fm-g45v(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202209-17(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20211104-0003/(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-5001(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpuapr2022.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.