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CVE-2021-32628
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
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
|
- | - |
References
- https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3
- https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49pr
- https://security.netapp.com/advisory/ntap-20211104-0003/
- https://www.debian.org/security/2021/dsa-5001
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.gentoo.org/glsa/202209-17
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org