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[email protected]CVE-2023-0464

HistoryMar 22, 2023 - 5:15 p.m.

CVE-2023-0464

2023-03-2217:15:13

CWE-295

[email protected]

web.nvd.nist.gov

353

cve-2023-0464

openssl

security vulnerability

x.509

certificate

chain

verification

denial-of-service

dos

nvd

7.5 High

CVSS3

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

7.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.6%

JSON

A security vulnerability has been identified in all supported versions

of OpenSSL related to the verification of X.509 certificate chains
that include policy constraints. Attackers may be able to exploit this
vulnerability by creating a malicious certificate chain that triggers
exponential use of computational resources, leading to a denial-of-service
(DoS) attack on affected systems.

Policy processing is disabled by default but can be enabled by passing
the -policy' argument to the command line utilities or by calling the X509_VERIFY_PARAM_set1_policies()’ function.

Affected configurations

NVD

Node

opensslopensslRange1.0.2–1.0.2zh

opensslopensslRange1.1.1–1.1.1u

opensslopensslRange3.0.0–3.0.9

opensslopensslRange3.1.0–3.1.1

CPENameOperatorVersion
openssl:opensslopenssllt1.0.2zh
openssl:opensslopenssllt1.1.1u
openssl:opensslopenssllt3.0.9
openssl:opensslopenssllt3.1.1

CPE	Name	Operator	Version
openssl:openssl	openssl	lt	1.0.2zh
openssl:openssl	openssl	lt	1.1.1u
openssl:openssl	openssl	lt	3.0.9
openssl:openssl	openssl	lt	3.1.1

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "lessThan": "3.1.1",
        "status": "affected",
        "version": "3.1.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.0.9",
        "status": "affected",
        "version": "3.0.0",
        "versionType": "semver"
      },
      {
        "lessThan": "1.1.1u",
        "status": "affected",
        "version": "1.1.1",
        "versionType": "custom"
      },
      {
        "lessThan": "1.0.2zh",
        "status": "affected",
        "version": "1.0.2",
        "versionType": "custom"
      }
    ]
  }
]