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CVE-2021-32628

CVE information

Published

2 years ago

Last Modified

4 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

Description

Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command..

CVSSv2.0 Score

Severity
Medium
Base Score
6/10
Exploit Score
6.8/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
Single
Impact Score
6.4/10
Confidentiality Impact
Partial
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

Severity
High
Base Score
7.5/10
Exploit Score
1.6/10
Access Vector
Network
Access Complexity
High
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:fedoraproject:fedora:33:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  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
- -