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[email protected]CVE-2021-32765

HistoryOct 04, 2021 - 9:15 p.m.

CVE-2021-32765

2021-10-0421:15:12

CWE-680

CWE-190

[email protected]

web.nvd.nist.gov

hiredis

redis

integer overflow

vulnerability

cve-2021-32765

nvd

security advisory

6.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.6 High

AI Score

Confidence

High

0.035 Low

EPSS

Percentile

91.6%

JSON

Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted RESP mult-bulk protocol data. When parsing multi-bulk (array-like) replies, hiredis fails to check if count * sizeof(redisReply*) can be represented in SIZE_MAX. If it can not, and the calloc() call doesn’t itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the maxelements context option to a value small enough that no overflow is possible.

Affected configurations

Vulners

NVD

Node

redishiredisRange<1.0.1

VendorProductVersionCPE
redishiredis*cpe:2.3:a:redis:hiredis:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redis	hiredis	*	cpe:2.3:a:redis:hiredis::::::::

CNA Affected

[
  {
    "vendor": "redis",
    "product": "hiredis",
    "versions": [
      {
        "version": "< 1.0.1",
        "status": "affected"
      }
    ]
  }
]