CVE-2023-0466

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.

Database specific

{
    "cna_assigner": "openssl",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0466.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "3.1.0"
                },
                {
                    "fixed": "3.1.1"
                },
                {
                    "introduced": "3.0.0"
                },
                {
                    "fixed": "3.0.9"
                },
                {
                    "introduced": "1.1.1"
                },
                {
                    "fixed": "1.1.1u"
                },
                {
                    "introduced": "1.0.2"
                },
                {
                    "fixed": "1.0.2zh"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/openssl/openssl

Affected ranges

Type

GIT

Repo

https://github.com/openssl/openssl

Events

Introduced

e818b74be2170fbe957a07b0da4401c2b694b3b8

Fixed

e818b74be2170fbe957a07b0da4401c2b694b3b8

Introduced

e04bd3433fd84e1861bf258ea37928d9845e6a86

Fixed

e04bd3433fd84e1861bf258ea37928d9845e6a86

Introduced

89cd17a031e022211684eb7eb41190cf1910f9fa

Fixed

de90e54bbe82e5be4fb9608b6f5c308bb837d355

Introduced

a92271e03a8d0dee507b6f1e7f49512568b2c7ad

Fixed

2cf4e90eaaf7402bf038b158dbdacd0a15561fb7

Database specific

Show details

{
    "cpe": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "1.0.2"
        },
        {
            "fixed": "1.0.2zh"
        },
        {
            "introduced": "1.1.1"
        },
        {
            "fixed": "1.1.1u"
        },
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.0.9"
        },
        {
            "introduced": "3.1.0"
        },
        {
            "fixed": "3.1.1"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

openssl-3.*

openssl-3.0.0

openssl-3.0.1

openssl-3.0.2

openssl-3.0.3

openssl-3.0.4

openssl-3.0.5

openssl-3.0.6

openssl-3.0.7

openssl-3.0.8

openssl-3.1.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-0466.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28170854778703993674264004058177114599",
                "73132526844288570625317440636111911761",
                "177405411499435185068645597737938634778",
                "224809958623850711330610094965797758930",
                "295554444428855106393106961197201359586"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2023-0466-c377fa22",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openssl/openssl/commit/e04bd3433fd84e1861bf258ea37928d9845e6a86",
        "target": {
            "file": "include/openssl/opensslv.h"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "251633914150035957322733061977107206211",
                "338514574181828579838011565939158652696",
                "76638288692106140328510055542557597351",
                "142922657400765574308962710386922248045",
                "71649992455794854055653842592139575350",
                "65527166711110472566013424527579064967",
                "253196866009476977787139000804413898733",
                "172177136897997206866313011107384691461"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2023-0466-e051451f",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openssl/openssl/commit/e818b74be2170fbe957a07b0da4401c2b694b3b8",
        "target": {
            "file": "crypto/opensslv.h"
        }
    }
]

vanir_signatures_modified

"2026-08-18T17:25:19Z"