fkie_cve-2019-16905
Vulnerability from fkie_nvd
Published
2019-10-09 20:15
Modified
2024-11-21 04:31
Summary
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.
References
cve@mitre.orghttps://0day.life/exploits/0day-1009.htmlExploit, Third Party Advisory
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1153537Issue Tracking, Third Party Advisory
cve@mitre.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfThird Party Advisory
cve@mitre.orghttps://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.cRelease Notes, Vendor Advisory
cve@mitre.orghttps://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=hPatch
cve@mitre.orghttps://security.gentoo.org/glsa/201911-01Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20191024-0003/Third Party Advisory
cve@mitre.orghttps://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflowExploit, Third Party Advisory
cve@mitre.orghttps://www.openssh.com/releasenotes.htmlRelease Notes
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2019/10/09/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://0day.life/exploits/0day-1009.htmlExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1153537Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.cRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=hPatch
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201911-01Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20191024-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflowExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openssh.com/releasenotes.htmlRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2019/10/09/1Mailing List, Third Party Advisory



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  "cveTags": [],
  "descriptions": [
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      "value": "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."
    },
    {
      "lang": "es",
      "value": "OpenSSH 7.7 a 7.9 y 8.x anterior de la versi\u00f3n  8.1, cuando se compila con un tipo de clave experimental, tiene un desbordamiento de entero de identificaci\u00f3n  previa si un cliente o servidor est\u00e1 configurado para usar una clave XMSS especialmente dise\u00f1ada. Esto conduce a la corrupci\u00f3n de la memoria y la ejecuci\u00f3n del c\u00f3digo local debido a un error en el algoritmo de an\u00e1lisis de claves XMSS. NOTA: la implementaci\u00f3n de XMSS se considera experimental en todas las versiones de OpenSSH lanzadas, y no hay una forma compatible para habilitarla al crear OpenSSH port\u00e1til."
    }
  ],
  "id": "CVE-2019-16905",
  "lastModified": "2024-11-21T04:31:18.910",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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"
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        "exploitabilityScore": 3.4,
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        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
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  "published": "2019-10-09T20:15:23.503",
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}


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