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[email protected]CVE-2022-3786

HistoryNov 01, 2022 - 6:15 p.m.

CVE-2022-3786

2022-11-0118:15:11

CWE-120

[email protected]

web.nvd.nist.gov

681

107

cve-2022-3786

x.509 certificate

buffer overrun

name constraint checking

denial of service

tls

server authentication

client authentication

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.9

Confidence

High

EPSS

0.001

Percentile

47.2%

JSON

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.’ character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

Affected configurations

NVD

Node

opensslopensslRange3.0.0–3.0.7

Node

fedoraprojectfedoraMatch36

fedoraprojectfedoraMatch37

Node

nodejsnode.jsRange18.0.0–18.11.0-

nodejsnode.jsMatch18.12.0lts

nodejsnode.jsMatch19.0.0-

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "lessThan": "3.0.7",
        "status": "affected",
        "version": "3.0.0",
        "versionType": "semver"
      }
    ]
  }
]