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Vulnerability Details : CVE-2021-32762

Redis is an open source, in-memory database that persists on disk. The redis-cli command line tool and redis-sentinel service may be vulnerable to integer overflow when parsing specially crafted large multi-bulk network replies. This is a result of a vulnerability in the underlying hiredis library which does not perform an overflow check before calling the calloc() heap allocation function. This issue only impacts systems with heap allocators that do not perform their own overflow checks. Most modern systems do and are therefore not likely to be affected. Furthermore, by default redis-sentinel uses the jemalloc allocator which is also not vulnerable. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14.
Publish Date : 2021-10-04 Last Update Date : 2021-11-28
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- CVSS Scores & Vulnerability Types

CVSS Score
9.0
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
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) Overflow
CWE ID 190

- Products Affected By CVE-2021-32762

# 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 And Netapp Hci - * * * Version Details Vulnerabilities
7 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 And Netapp Hci 1
Redis Redis 1

- References For CVE-2021-32762

https://www.debian.org/security/2021/dsa-5001
DEBIAN DSA-5001
https://security.netapp.com/advisory/ntap-20211104-0003/ CONFIRM
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/
FEDORA FEDORA-2021-aa94492a09
https://github.com/redis/redis/security/advisories/GHSA-833w-8v3m-8wwr CONFIRM
https://github.com/redis/redis/commit/0215324a66af949be39b34be2d55143232c1cb71
https://lists.fedoraproject.org/archives/list/[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/
FEDORA FEDORA-2021-8913c7900c
https://lists.fedoraproject.org/archives/list/[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/
FEDORA FEDORA-2021-61c487f241

- Metasploit Modules Related To CVE-2021-32762

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


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