CVE-2021-32627
CVSS V2 Medium 6
CVSS V3 High 7.5
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.
Overview
- CVE ID
- CVE-2021-32627
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-04T18:15:08
- Last Modified Date
- 2022-10-06T16:55:02
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 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:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 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: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:M/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6
- Severity
- MEDIUM
- Exploitability Score
- 6.8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 1.6
- Impact Score
- 5.9
References
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-32627 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32627 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 16:59:12 | Added to TrackCVE | |||
| 2022-12-05 11:45:04 | 2021-10-04T18:15Z | 2021-10-04T18:15:08 | CVE Published Date | updated |
| 2022-12-05 11:45:04 | 2022-10-06T16:55:02 | CVE Modified Date | updated | |
| 2022-12-05 11:45:04 | Analyzed | Vulnerability Status | updated | |
| 2022-12-05 11:45:09 | References | updated |