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URL: https://nvd.nist.gov/vuln/detail/CVE-2021-32762

⇱ NVD - CVE-2021-32762

  1. Vulnerabilities

CVE-2021-32762 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/redis/redis/commit/0215324a66af949be39b34be2d55143232c1cb71 CVE, GitHub, Inc. Patch  Third Party Advisory 
https://github.com/redis/redis/security/advisories/GHSA-833w-8v3m-8wwr CVE, GitHub, Inc. Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ CVE, GitHub, Inc.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ CVE, GitHub, Inc.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ CVE, GitHub, Inc.
https://security.gentoo.org/glsa/202209-17 CVE, GitHub, Inc. Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211104-0003/ CVE, GitHub, Inc. Third Party Advisory 
https://www.debian.org/security/2021/dsa-5001 CVE, GitHub, Inc. Third Party Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html CVE, GitHub, Inc. Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound 👁 cwe source acceptance level
NIST   GitHub, Inc.  
CWE-680 Integer Overflow to Buffer Overflow GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

17 change records found show changes

CVE Modified by GitHub, Inc. 6/16/2026 11:53:34 PM

Action Type Old Value New Value
Added Affected 
[{"vendor":"redis","product":"redis","versions":[{"version":"< 5.0.14","status":"affected"},{"version":">= 6.0.0, < 6.0.16","status":"affected"},{"version":">= 6.2.0, < 6.2.6","status":"affected"}]}]

CVE Modified by CVE 11/21/2024 1:07:41 AM

Action Type Old Value New Value
Added Reference 
https://github.com/redis/redis/commit/0215324a66af949be39b34be2d55143232c1cb71
Added Reference 
https://github.com/redis/redis/security/advisories/GHSA-833w-8v3m-8wwr
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/
Added Reference 
https://security.gentoo.org/glsa/202209-17
Added Reference 
https://security.netapp.com/advisory/ntap-20211104-0003/
Added Reference 
https://www.debian.org/security/2021/dsa-5001
Added Reference 
https://www.oracle.com/security-alerts/cpuapr2022.html

CVE Modified by GitHub, Inc. 5/14/2024 5:06:18 AM

Action Type Old Value New Value

CVE Modified by GitHub, Inc. 11/06/2023 10:35:26 PM

Action Type Old Value New Value
Added Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ [No types assigned]
Added Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ [No types assigned]
Added Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ [No types assigned]
Removed Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/
Removed Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/
Removed Reference 
GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/

Modified Analysis by NIST 10/06/2022 12:53:25 PM

Action Type Old Value New Value
Changed Reference Type 
https://security.gentoo.org/glsa/202209-17 No Types Assigned


 
https://security.gentoo.org/glsa/202209-17 Third Party Advisory

CVE Modified by GitHub, Inc. 9/29/2022 1:15:20 PM

Action Type Old Value New Value
Added Reference 
https://security.gentoo.org/glsa/202209-17 [No Types Assigned]

Modified Analysis by NIST 5/13/2022 1:21:49 PM

Action Type Old Value New Value
Added CPE Configuration 
OR
 *cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*
 *cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*
 *cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*
Removed CPE Configuration 
OR
 *cpe:2.3:a:netapp:management_services_for_element_software_and_netapp_hci:-:*:*:*:*:*:*:*
Changed Reference Type 
https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned


 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory

CVE Modified by GitHub, Inc. 4/19/2022 8:15:58 PM

Action Type Old Value New Value
Added Reference 
https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]

Modified Analysis by NIST 11/28/2021 6:18:41 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
 *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
 *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ Mailing List, Third Party Advisory
Changed Reference Type 
https://security.netapp.com/advisory/ntap-20211104-0003/ No Types Assigned


 
https://security.netapp.com/advisory/ntap-20211104-0003/ Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-5001 No Types Assigned


 
https://www.debian.org/security/2021/dsa-5001 Third Party Advisory

CVE Modified by GitHub, Inc. 11/17/2021 5:18:24 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ [No Types Assigned]
Added Reference 
https://security.netapp.com/advisory/ntap-20211104-0003/ [No Types Assigned]
Added Reference 
https://www.debian.org/security/2021/dsa-5001 [No Types Assigned]

CVE Modified by GitHub, Inc. 11/09/2021 8:17:24 PM

Action Type Old Value New Value
Removed Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ [Mailing List, Third Party Advisory]
Removed Reference 
https://security.netapp.com/advisory/ntap-20211104-0003/ [Third Party Advisory]
Removed Reference 
https://www.debian.org/security/2021/dsa-5001 [Third Party Advisory]

Modified Analysis by NIST 11/08/2021 4:58:57 PM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
 *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:netapp:management_services_for_element_software_and_netapp_hci:-:*:*:*:*:*:*:*
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ Mailing List, Third Party Advisory
Changed Reference Type 
https://security.netapp.com/advisory/ntap-20211104-0003/ No Types Assigned


 
https://security.netapp.com/advisory/ntap-20211104-0003/ Third Party Advisory
Changed Reference Type 
https://www.debian.org/security/2021/dsa-5001 No Types Assigned


 
https://www.debian.org/security/2021/dsa-5001 Third Party Advisory

CVE Modified by GitHub, Inc. 11/06/2021 7:15:08 AM

Action Type Old Value New Value
Added Reference 
https://www.debian.org/security/2021/dsa-5001 [No Types Assigned]

CVE Modified by GitHub, Inc. 11/04/2021 5:15:09 AM

Action Type Old Value New Value
Added Reference 
https://security.netapp.com/advisory/ntap-20211104-0003/ [No Types Assigned]

CVE Modified by GitHub, Inc. 10/29/2021 10:15:10 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/ [No Types Assigned]

Initial Analysis by NIST 10/13/2021 1:08:06 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added CVSS V2 
NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Added CWE 
NIST CWE-190
Added CPE Configuration 
OR
 *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.14
 *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.0.16
 *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions from (including) 6.2.0 up to (excluding) 6.2.6
Added CPE Configuration 
OR
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Changed Reference Type 
https://github.com/redis/redis/commit/0215324a66af949be39b34be2d55143232c1cb71 No Types Assigned


 
https://github.com/redis/redis/commit/0215324a66af949be39b34be2d55143232c1cb71 Patch, Third Party Advisory
Changed Reference Type 
https://github.com/redis/redis/security/advisories/GHSA-833w-8v3m-8wwr No Types Assigned


 
https://github.com/redis/redis/security/advisories/GHSA-833w-8v3m-8wwr Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ Mailing List, Third Party Advisory

CVE Modified by GitHub, Inc. 10/12/2021 10:15:08 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/ [No Types Assigned]
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/ [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2021-32762
NVD Published Date:
10/04/2021
NVD Last Modified:
06/16/2026
Source:
GitHub, Inc.