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CVE-2021-32762

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 04-10-2021 08:15
Last modified: - 13-05-2022 07:21
Total changes: - 6

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Low
Attack complexity
Network
Attack vector
High
Availability
High
Confidentiality
High
Integrity
Low
Privileges required
Unchanged
Scope
None
User interaction
8.8
Base score
2.8
5.9
Exploitability score
Impact score
 

Verification logic

OR
OR
vendor=redis AND product=redis AND versionStartIncluding=6.2.0 AND versionEndExcluding=6.2.6
vendor=redis AND product=redis AND versionStartIncluding=6.0.0 AND versionEndExcluding=6.0.16
vendor=redis AND product=redis AND versionStartIncluding=5.0.0 AND versionEndExcluding=5.0.14
OR
vendor=Debian AND product=debian_linux AND version=10.0
vendor=Debian AND product=debian_linux AND version=11.0
OR
vendor=fedoraproject AND product=fedora AND version=33
vendor=fedoraproject AND product=fedora AND version=34
vendor=fedoraproject AND product=fedora AND version=35
OR
vendor=netapp AND product=management_services_for_element_software AND version=-
vendor=netapp AND product=management_services_for_netapp_hci AND version=-
OR
vendor=oracle AND product=communications_operations_monitor AND version=4.3
vendor=oracle AND product=communications_operations_monitor AND version=4.4
vendor=oracle AND product=communications_operations_monitor AND version=5.0
 

Reference

 


Keywords

NVD

 

CVE-2021-32762

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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