Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2023-0464

Improper Certificate Validation

Published: Mar 22, 2023 | Modified: May 05, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
5.9 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-0464
CWEhttps://cwe.mitre.org/data/definitions/295.html

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.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
OpensslOpenssl1.0.2 (including)1.0.2zh (excluding)
OpensslOpenssl1.1.1 (including)1.1.1u (excluding)
OpensslOpenssl3.0.0 (including)3.0.9 (excluding)
OpensslOpenssl3.1.0 (including)3.1.1 (excluding)
JBoss Core Services for RHEL 8RedHatjbcs-httpd24-openssl-1:1.1.1k-16.el8jbcs*
JBoss Core Services on RHEL 7RedHatjbcs-httpd24-openssl-1:1.1.1k-16.el7jbcs*
Red Hat Enterprise Linux 9RedHatopenssl-1:3.0.7-16.el9_2*
Red Hat Enterprise Linux 9RedHatopenssl-1:3.0.7-16.el9_2*
Red Hat JBoss Web Server 5RedHatopenssl*
Red Hat JBoss Web Server 5.7 on RHEL 7RedHatjws5-tomcat-native-0:1.2.31-16.redhat_16.el7jws*
Red Hat JBoss Web Server 5.7 on RHEL 8RedHatjws5-tomcat-native-0:1.2.31-16.redhat_16.el8jws*
Red Hat JBoss Web Server 5.7 on RHEL 9RedHatjws5-tomcat-native-0:1.2.31-16.redhat_16.el9jws*
Text-Only JBCSRedHatopenssl*
Edk2Ubuntubionic*
Edk2Ubuntuesm-infra/focal*
Edk2Ubuntufocal*
Edk2Ubuntujammy*
Edk2Ubuntukinetic*
Edk2Ubuntulunar*
Edk2Ubuntumantic*
Edk2Ubuntutrusty*
Edk2Ubuntuxenial*
NodejsUbuntuesm-apps/jammy*
NodejsUbuntujammy*
NodejsUbuntutrusty*
OpensslUbuntubionic*
OpensslUbuntudevel*
OpensslUbuntuesm-infra-legacy/trusty*
OpensslUbuntuesm-infra/bionic*
OpensslUbuntuesm-infra/focal*
OpensslUbuntuesm-infra/xenial*
OpensslUbuntufips-preview/jammy*
OpensslUbuntufips-updates/bionic*
OpensslUbuntufips-updates/focal*
OpensslUbuntufips-updates/jammy*
OpensslUbuntufips-updates/xenial*
OpensslUbuntufips/bionic*
OpensslUbuntufips/focal*
OpensslUbuntufips/xenial*
OpensslUbuntufocal*
OpensslUbuntujammy*
OpensslUbuntukinetic*
OpensslUbuntulunar*
OpensslUbuntumantic*
OpensslUbuntunoble*
OpensslUbuntuoracular*
OpensslUbuntuplucky*
OpensslUbuntuquesting*
OpensslUbuntutrusty*
OpensslUbuntutrusty/esm*
OpensslUbuntuupstream*
OpensslUbuntuxenial*
Openssl1.0Ubuntubionic*
Openssl1.0Ubuntuesm-infra/bionic*

Potential Mitigations

References

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