CVE-2021-32762
CVSS V2 High 9
CVSS V3 High 8.8
Description
Redis is an open source, in-memory database that persists on disk. The redis-cli command line tool and redis-sentinel service may be vulnerable to integer overflow when parsing specially crafted large multi-bulk network replies. This is a result of a vulnerability in the underlying hiredis library which does not perform an overflow check before calling the calloc() heap allocation function. This issue only impacts systems with heap allocators that do not perform their own overflow checks. Most modern systems do and are therefore not likely to be affected. Furthermore, by default redis-sentinel uses the jemalloc allocator which is also not vulnerable. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14.
Overview
- CVE ID
- CVE-2021-32762
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-04T18:15:09
- Last Modified Date
- 2022-10-06T16:53:25
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:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR | ||
| 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: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:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9
- Severity
- HIGH
- Exploitability Score
- 8
- Impact Score
- 10
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-2021-32762 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32762 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 16:59:11 | Added to TrackCVE | |||
| 2022-12-05 11:45:26 | 2021-10-04T18:15Z | 2021-10-04T18:15:09 | CVE Published Date | updated |
| 2022-12-05 11:45:26 | 2022-10-06T16:53:25 | CVE Modified Date | updated | |
| 2022-12-05 11:45:26 | Analyzed | Vulnerability Status | updated | |
| 2022-12-05 11:45:31 | References | updated |