CVE - CVE-2021-32628

CVE-ID
CVE-2021-32628	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49pr URL:https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49pr CONFIRM:https://security.netapp.com/advisory/ntap-20211104-0003/ URL:https://security.netapp.com/advisory/ntap-20211104-0003/ DEBIAN:DSA-5001 URL:https://www.debian.org/security/2021/dsa-5001 FEDORA:FEDORA-2021-61c487f241 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ FEDORA:FEDORA-2021-8913c7900c URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ FEDORA:FEDORA-2021-aa94492a09 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ GENTOO:GLSA-202209-17 URL:https://security.gentoo.org/glsa/202209-17 MISC:https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3 URL:https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3 MISC:https://www.oracle.com/security-alerts/cpuapr2022.html URL:https://www.oracle.com/security-alerts/cpuapr2022.html
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210512	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210512)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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