CVE-2021-32762

Published Oct 4, 2021

Last updated a year ago

CVSS high 8.8

Overview

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.
Source: security-advisories@github.com
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

CVSS 2.0

Type: Primary
Base score: 9
Impact score: 10
Exploitability score: 8
Vector string: AV:N/AC:L/Au:S/C:C/I:C/A:C

Weaknesses

security-advisories@github.com: CWE-190
nvd@nist.gov: CWE-190

Hype score: Not currently trending

Configurations

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Overview

Risk scores

CVSS 3.1

CVSS 2.0

Weaknesses

Social media

Configurations

References