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[email protected]CVE-2021-3672

HistoryNov 23, 2021 - 7:15 p.m.

CVE-2021-3672

2021-11-2319:15:07

CWE-79

[email protected]

web.nvd.nist.gov

414

c-ares

library

dns

input validation

cve-2021-3672

vulnerability

confidentiality

integrity

system availability

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

5.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

5.9

Confidence

High

EPSS

0.002

Percentile

52.8%

JSON

A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

Affected configurations

Vulners

NVD

Node

c-aresc-aresRange≤1.17.2

VendorProductVersionCPE
huaweiares\-al00b*cpe:2.3:h:huawei:ares\-al00b:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
huawei	ares\-al00b	*	cpe:2.3:h:huawei:ares\-al00b::::::::

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "c-ares",
    "versions": [
      {
        "version": "c-ares 1.17.2",
        "status": "affected"
      }
    ]
  }
]