gsd-2020-1730
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.
Aliases
Aliases
CVE-2020-1730


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-1730",
    "description": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.",
    "id": "GSD-2020-1730",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-1730.html",
      "https://access.redhat.com/errata/RHSA-2020:5218",
      "https://access.redhat.com/errata/RHSA-2020:4545",
      "https://ubuntu.com/security/CVE-2020-1730",
      "https://advisories.mageia.org/CVE-2020-1730.html",
      "https://security.archlinux.org/CVE-2020-1730",
      "https://linux.oracle.com/cve/CVE-2020-1730.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-1730"
      ],
      "details": "A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn\u0027t been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.",
      "id": "GSD-2020-1730",
      "modified": "2023-12-13T01:21:58.712607Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2020-1730",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
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                        },
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          }
        ]
      },
      "impact": {
        "cvss": [
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            {
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          },
          {
            "name": "USN-4327-1",
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          },
          {
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          },
          {
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          },
          {
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          },
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          },
          {
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    },
    "nvd.nist.gov": {
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          },
          {
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              {
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                "cpe_name": [],
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              },
              {
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            ],
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          {
            "children": [],
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              }
            ],
            "operator": "OR"
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      },
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          "ID": "CVE-2020-1730"
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            }
          ]
        },
        "problemtype": {
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        },
        "references": {
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            {
              "name": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://www.libssh.org/security/advisories/CVE-2020-1730.txt"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730",
              "refsource": "CONFIRM",
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              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-11-08T20:09Z",
      "publishedDate": "2020-04-13T19:15Z"
    }
  }
}


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