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Vulnerability Details : CVE-2021-32626

Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Publish Date : 2021-10-04 Last Update Date : 2022-09-29
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication ???
Gained Access None
Vulnerability Type(s) Execute CodeOverflowMemory corruption
CWE ID 787

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:3918: redis:5 security update (Important) oval:com.redhat.rhsa:def:20213918 unix
RHSA-2021:3945: redis:6 security update (Important) oval:com.redhat.rhsa:def:20213945 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-32626

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 11.0 * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
4 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
5 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
6 Application Netapp Management Services For Element Software - * * * Version Details Vulnerabilities
7 Application Netapp Management Services For Netapp Hci - * * * Version Details Vulnerabilities
8 Application Oracle Communications Operations Monitor 4.3 * * * Version Details Vulnerabilities
9 Application Oracle Communications Operations Monitor 4.4 * * * Version Details Vulnerabilities
10 Application Oracle Communications Operations Monitor 5.0 * * * Version Details Vulnerabilities
11 Application Redis Redis * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 2
Fedoraproject Fedora 3
Netapp Management Services For Element Software 1
Netapp Management Services For Netapp Hci 1
Oracle Communications Operations Monitor 3
Redis Redis 1

- References For CVE-2021-32626[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/
GENTOO GLSA-202209-17[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/
FEDORA FEDORA-2021-aa94492a09[email protected]
MLIST [druid-commits] 20211025 [GitHub] [druid] jihoonson opened a new pull request #11844: Bump netty4 to 4.1.68; suppress CVE-2021-37136 and CVE-2021-37137 for netty3 CONFIRM[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/
FEDORA FEDORA-2021-8913c7900c

- Metasploit Modules Related To CVE-2021-32626

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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