medium
5.3
CWE
295
Advisory Published
Updated

CVE-2023-0466: Certificate policy check not enabled

First published: Tue Mar 28 2023(Updated: )

The function X509_VERIFY_PARAM_add0_policy() is documented to implicitly enable the certificate policy check when doing certificate verification. However the implementation of the function does not enable the check which allows certificates with invalid or incorrect policies to pass the certificate verification. As suddenly enabling the policy check could break existing deployments it was decided to keep the existing behavior of the X509_VERIFY_PARAM_add0_policy() function. Instead the applications that require OpenSSL to perform certificate policy check need to use X509_VERIFY_PARAM_set1_policies() or explicitly enable the policy check by calling X509_VERIFY_PARAM_set_flags() with the X509_V_FLAG_POLICY_CHECK flag argument. Certificate policy checks are disabled by default in OpenSSL and are not commonly used by applications.

Credit: openssl-security@openssl.org openssl-security@openssl.org

Affected SoftwareAffected VersionHow to fix
OpenSSL OpenSSL>=1.0.2<1.0.2zh
OpenSSL OpenSSL>=1.1.1<1.1.1u
OpenSSL OpenSSL>=3.0.0<3.0.9
OpenSSL OpenSSL>=3.1.0<3.1.1
debian/openssl<=1.1.1n-0+deb10u3
1.1.1n-0+deb10u6
1.1.1w-0+deb11u1
1.1.1n-0+deb11u5
3.0.11-1~deb12u2
3.1.4-2

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=0d16b7e99aafc0b4a6d729eec65a411a7e025f0a

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=51e8a84ce742db0f6c70510d0159dad8f7825908

Remedy

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fc814a30fc4f0bc54fcea7d9a7462f5457aab061

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID is CVE-2023-0466.

  • What is the severity rating of CVE-2023-0466?

    CVE-2023-0466 has a severity rating of 5.3 (medium).

  • How does CVE-2023-0466 affect OpenSSL?

    CVE-2023-0466 affects certain versions of OpenSSL, such as 1.1.1n-0+deb10u6 and 1.1.1n-0+deb11u5.

  • How can I fix CVE-2023-0466?

    To fix CVE-2023-0466, you should update OpenSSL to versions 1.1.1n-0+deb10u6, 1.1.1n-0+deb11u5, 3.0.9-1, or 3.0.11-1.

  • What CWE category does CVE-2023-0466 belong to?

    CVE-2023-0466 belongs to CWE category 295 (Improper Certificate Validation).

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