CVE-2021-32762

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

04/10/2021

Last modified:

07/11/2023

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.00 HIGH
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

9.00

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:redis:redis::::::::	5.0.0 (including)	5.0.14 (excluding)
cpe:2.3:a:redis:redis::::::::	6.0.0 (including)	6.0.16 (excluding)
cpe:2.3:a:redis:redis::::::::	6.2.0 (including)	6.2.6 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:a:netapp:management_services_for_element_software:-:::::::*
cpe:2.3:a:netapp:management_services_for_netapp_hci:-:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:4.3:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:4.4:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:5.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:redis:redis::::::::	5.0.0 (including)	5.0.14 (excluding)
cpe:2.3:a:redis:redis::::::::	6.0.0 (including)	6.0.16 (excluding)
cpe:2.3:a:redis:redis::::::::	6.2.0 (including)	6.2.6 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:a:netapp:management_services_for_element_software:-:::::::*
cpe:2.3:a:netapp:management_services_for_netapp_hci:-:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:4.3:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:4.4:::::::*
cpe:2.3:a:oracle:communications_operations_monitor:5.0:::::::*

CVE-2021-32762

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools