{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2023-2283",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "dateUpdated": "2025-11-03T20:35:18.528Z",
        "dateReserved": "2023-04-25T00:00:00.000Z",
        "datePublished": "2023-05-26T00:00:00.000Z"
    },
    "containers": {
        "cna": {
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                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat",
                "dateUpdated": "2024-02-01T17:06:59.699Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "libssh",
                    "versions": [
                        {
                            "version": "libssh-2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://access.redhat.com/security/cve/CVE-2023-2283"
                },
                {
                    "url": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt"
                },
                {
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736"
                },
                {
                    "name": "FEDORA-2023-5fa5ca2043",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/"
                },
                {
                    "url": "http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html"
                },
                {
                    "name": "GLSA-202312-05",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.gentoo.org/glsa/202312-05"
                },
                {
                    "url": "https://security.netapp.com/advisory/ntap-20240201-0005/"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-287",
                            "cweId": "CWE-287"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://access.redhat.com/security/cve/CVE-2023-2283",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt",
                        "tags": [
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                        ]
                    },
                    {
                        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736",
                        "tags": [
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                        ]
                    },
                    {
                        "name": "FEDORA-2023-5fa5ca2043",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/"
                    },
                    {
                        "url": "http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "GLSA-202312-05",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://security.gentoo.org/glsa/202312-05"
                    },
                    {
                        "url": "https://security.netapp.com/advisory/ntap-20240201-0005/",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "http://seclists.org/fulldisclosure/2025/Feb/18"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T20:35:18.528Z"
                }
            }
        ]
    }
}