gsd-2023-2283
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
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.
Aliases
Aliases
CVE-2023-2283


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-2283",
    "id": "GSD-2023-2283"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-2283"
      ],
      "details": "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.",
      "id": "GSD-2023-2283",
      "modified": "2023-12-13T01:20:32.118837Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2023-2283",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "libssh",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "libssh-2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
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      },
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          }
        ]
      },
      "problemtype": {
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                "value": "CWE-287"
              }
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          }
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      },
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            "refsource": "MISC",
            "url": "https://access.redhat.com/security/cve/CVE-2023-2283"
          },
          {
            "name": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt",
            "refsource": "MISC",
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          },
          {
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            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736"
          },
          {
            "name": "FEDORA-2023-5fa5ca2043",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/"
          },
          {
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          },
          {
            "name": "GLSA-202312-05",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202312-05"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20240201-0005/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20240201-0005/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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        "descriptions": [
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            "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."
          }
        ],
        "id": "CVE-2023-2283",
        "lastModified": "2024-02-01T17:15:08.197",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
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        "published": "2023-05-26T18:15:13.770",
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        "vulnStatus": "Modified",
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            "source": "secalert@redhat.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}


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