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CVE-2021-32762

CVE information

Published

2 years ago

Last Modified

5 months ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

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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..

CVSSv2.0 Score

Severity
High
Base Score
9/10
Exploit Score
8/10
Access Vector
Network
Access Complexity
Low
Authentication Required
Single
Impact Score
10/10
Confidentiality Impact
Complete
Availability Impact
Complete
Integrity Impact
Complete

CVSSv3.1 Score

Severity
High
Base Score
8.8/10
Exploit Score
2.8/10
Access Vector
Network
Access Complexity
Low
Privileges Required
Low
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
  Yes
6.2.0 6.2.6
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
  Yes
6.0.0 6.0.16
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
  Yes
5.0.0 5.0.14
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:netapp:management_services_for_element_software:-:
  Yes
- -
cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:
  Yes
- -
cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*
  Yes
- -
cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*
  Yes
- -
cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*
  Yes
- -

References