CVE-2023-0464

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 theX509VERIFYPARAMset1policies()' function.

Database specific

{
    "cna_assigner": "openssl",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0464.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

{
    "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"
        }
    ],
    "cpe": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
    "source": "CPE_FIELD"
}

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

vanir_signatures_modified

"2026-05-13T15:20:35Z"

vanir_signatures

[
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "id": "CVE-2023-0464-c377fa22",
        "target": {
            "file": "include/openssl/opensslv.h"
        },
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28170854778703993674264004058177114599",
                "73132526844288570625317440636111911761",
                "177405411499435185068645597737938634778",
                "224809958623850711330610094965797758930",
                "295554444428855106393106961197201359586"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/e04bd3433fd84e1861bf258ea37928d9845e6a86"
    },
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "id": "CVE-2023-0464-e051451f",
        "target": {
            "file": "crypto/opensslv.h"
        },
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "251633914150035957322733061977107206211",
                "338514574181828579838011565939158652696",
                "76638288692106140328510055542557597351",
                "142922657400765574308962710386922248045",
                "71649992455794854055653842592139575350",
                "65527166711110472566013424527579064967",
                "253196866009476977787139000804413898733",
                "172177136897997206866313011107384691461"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/openssl/openssl/commit/e818b74be2170fbe957a07b0da4401c2b694b3b8"
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-0464.json"