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.
Published: 2021-10-04
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-5001-1 redis security update
EUVD EUVD EUVD-2021-19458 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.
Ubuntu USN Ubuntu USN USN-5221-1 Redis vulnerabilities
History

Sun, 08 Sep 2024 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.2::el7
cpe:/a:redhat:acm:2.4::el8

Mon, 19 Aug 2024 22:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.2::el8
cpe:/a:redhat:acm:2.4::el8

Subscriptions

Debian Debian Linux
Fedoraproject Fedora
Netapp Management Services For Element Software Management Services For Netapp Hci
Oracle Communications Operations Monitor
Redhat Acm Enterprise Linux Openstack Rhel Eus Rhel Software Collections
Redis Redis
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-03T23:25:30.868Z

Reserved: 2021-05-12T00:00:00.000Z

Link: CVE-2021-32627

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2021-10-04T18:15:08.353

Modified: 2024-11-21T06:07:24.570

Link: CVE-2021-32627

cve-icon Redhat

Severity : Important

Publid Date: 2021-10-04T00:00:00Z

Links: CVE-2021-32627 - Bugzilla

cve-icon OpenCVE Enrichment

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