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CVE-2021-32627

CVE information

Published

2 years ago

Last Modified

5 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

High

Impact Analysis

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Description

Redis is an open source, in-memory database that persists on disk. In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default proto-max-bulk-len and client-query-buffer-limit configuration parameters to very large values and constructing specially crafted very large stream elements. The problem is fixed in Redis 6.2.6, 6.0.16 and 5.0.14. For users unable to upgrade an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the proto-max-bulk-len configuration parameter. 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
- -

References