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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2023-0464

Excessive Resource Usage Verifying X.509 Policy Constraints

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Status
Published
Published
Updated
Assigning organization
openssl

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

OpenSSL OpenSSL

Default version status: unaffected

  • 3.1.0 to < 3.1.1affected
  • 3.0.0 to < 3.0.9affected
  • 1.1.1 to < 1.1.1uaffected
  • 1.0.2 to < 1.0.2zhaffected

References