gsd-2019-16905
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
Aliases
Aliases
CVE-2019-16905


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-16905",
    "description": "OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.",
    "id": "GSD-2019-16905",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-16905.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-16905"
      ],
      "details": "OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.",
      "id": "GSD-2019-16905",
      "modified": "2023-12-13T01:23:40.972414Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-16905",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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              "vendor_name": "n/a"
            }
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          }
        ]
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            "url": "https://www.openssh.com/releasenotes.html"
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          {
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            "refsource": "CONFIRM",
            "url": "https://www.openwall.com/lists/oss-security/2019/10/09/1"
          },
          {
            "name": "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5\u0026r2=1.6\u0026f=h",
            "refsource": "MISC",
            "url": "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5\u0026r2=1.6\u0026f=h"
          },
          {
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            "url": "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c"
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            "url": "https://0day.life/exploits/0day-1009.html"
          },
          {
            "name": "https://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflow",
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            "url": "https://security.netapp.com/advisory/ntap-20191024-0003/"
          },
          {
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            "url": "https://security.gentoo.org/glsa/201911-01"
          },
          {
            "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
            "refsource": "CONFIRM",
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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                "versionEndIncluding": "7.9",
                "versionStartIncluding": "7.7",
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              },
              {
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                "cpe_name": [],
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            "operator": "OR"
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              {
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                ],
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              }
            ],
            "cpe_match": [],
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        ]
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      "cve": {
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          "ID": "CVE-2019-16905"
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        "description": {
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            }
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        "problemtype": {
          "problemtype_data": [
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                  "value": "CWE-190"
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5\u0026r2=1.6\u0026f=h",
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            },
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              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-03-01T01:56Z",
      "publishedDate": "2019-10-09T20:15Z"
    }
  }
}


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