CVE-2021-32626
CVSS V2 Medium 6.5
CVSS V3 High 8.8
Description
Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Overview
- CVE ID
- CVE-2021-32626
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-04T18:15:08
- Last Modified Date
- 2022-10-06T16:54:14
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | 1 | OR | 2.6 | 5.0.14 |
| cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | 1 | OR | 6.0.0 | 6.0.16 |
| cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | 1 | OR | 6.2.0 | 6.2.6 |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-32626 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32626 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 16:59:12 | Added to TrackCVE | |||
| 2022-12-05 11:45:00 | 2021-10-04T18:15Z | 2021-10-04T18:15:08 | CVE Published Date | updated |
| 2022-12-05 11:45:00 | 2022-10-06T16:54:14 | CVE Modified Date | updated | |
| 2022-12-05 11:45:00 | Analyzed | Vulnerability Status | updated | |
| 2022-12-05 11:45:00 | CWE-122 | Weakness Enumeration | updated | |
| 2022-12-05 11:45:04 | References | updated |