CVE-2020-1967
Vulnerability from cvelistv5
Published
2020-04-21 13:45
Modified
2024-09-17 03:13
Severity ?
Summary
Segmentation fault in SSL_check_chain
References
openssl-security@openssl.orghttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.htmlMailing List, Third Party Advisory
openssl-security@openssl.orghttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.htmlMailing List, Third Party Advisory
openssl-security@openssl.orghttp://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
openssl-security@openssl.orghttp://seclists.org/fulldisclosure/2020/May/5Mailing List, Third Party Advisory
openssl-security@openssl.orghttp://www.openwall.com/lists/oss-security/2020/04/22/2Mailing List, Third Party Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1
openssl-security@openssl.orghttps://github.com/irsl/CVE-2020-1967Exploit, Third Party Advisory
openssl-security@openssl.orghttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440Third Party Advisory
openssl-security@openssl.orghttps://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E
openssl-security@openssl.orghttps://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E
openssl-security@openssl.orghttps://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/
openssl-security@openssl.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.ascPatch, Third Party Advisory
openssl-security@openssl.orghttps://security.gentoo.org/glsa/202004-10Third Party Advisory
openssl-security@openssl.orghttps://security.netapp.com/advisory/ntap-20200424-0003/Third Party Advisory
openssl-security@openssl.orghttps://security.netapp.com/advisory/ntap-20200717-0004/Third Party Advisory
openssl-security@openssl.orghttps://www.debian.org/security/2020/dsa-4661Third Party Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20200421.txtVendor Advisory
openssl-security@openssl.orghttps://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuoct2020.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.synology.com/security/advisory/Synology_SA_20_05Third Party Advisory
openssl-security@openssl.orghttps://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSLThird Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2020-03Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2020-04Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2020-11Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2021-10Third Party Advisory
Impacted products
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

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              "value": "Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the \"signature_algorithms_cert\" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f)."
            }
          ]
        },
        "impact": [
          {
            "lang": "eng",
            "url": "https://www.openssl.org/policies/secpolicy.html#High",
            "value": "High"
          }
        ],
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "NULL pointer dereference"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "FreeBSD-SA-20:11",
              "refsource": "FREEBSD",
              "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc"
            },
            {
              "name": "DSA-4661",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4661"
            },
            {
              "name": "[oss-security] 20200422 [CVE-2020-1967] OpenSSL 1.1.1d+ Segmentation fault in SSL_check_chain",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/04/22/2"
            },
            {
              "name": "[tomcat-dev] 20200422 Time for Tomcat Native 1.2.24?",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee@%3Cdev.tomcat.apache.org%3E"
            },
            {
              "name": "[tomcat-dev] 20200422 Re: Time for Tomcat Native 1.2.24?",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345@%3Cdev.tomcat.apache.org%3E"
            },
            {
              "name": "[tomcat-dev] 20200423 Re: Time for Tomcat Native 1.2.24?",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064@%3Cdev.tomcat.apache.org%3E"
            },
            {
              "name": "GLSA-202004-10",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202004-10"
            },
            {
              "name": "FEDORA-2020-fcc91a28e8",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/"
            },
            {
              "name": "FEDORA-2020-da2d1ef2d7",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/"
            },
            {
              "name": "20200501 CVE-2020-1967: proving sigalg != NULL",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2020/May/5"
            },
            {
              "name": "FEDORA-2020-d7b29838f6",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/"
            },
            {
              "name": "openSUSE-SU-2020:0933",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html"
            },
            {
              "name": "openSUSE-SU-2020:0945",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujul2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
            },
            {
              "name": "https://www.tenable.com/security/tns-2020-03",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2020-03"
            },
            {
              "name": "https://www.openssl.org/news/secadv/20200421.txt",
              "refsource": "CONFIRM",
              "url": "https://www.openssl.org/news/secadv/20200421.txt"
            },
            {
              "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb563247aef3e83dda7679c43f9649270462e5b1",
              "refsource": "CONFIRM",
              "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb563247aef3e83dda7679c43f9649270462e5b1"
            },
            {
              "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440",
              "refsource": "CONFIRM",
              "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200424-0003/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200424-0003/"
            },
            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL"
            },
            {
              "name": "https://github.com/irsl/CVE-2020-1967",
              "refsource": "MISC",
              "url": "https://github.com/irsl/CVE-2020-1967"
            },
            {
              "name": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html"
            },
            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_20_05",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/security/advisory/Synology_SA_20_05"
            },
            {
              "name": "https://www.tenable.com/security/tns-2020-04",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2020-04"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200717-0004/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20200717-0004/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
            },
            {
              "name": "https://www.tenable.com/security/tns-2020-11",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2020-11"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuApr2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
            },
            {
              "name": "https://www.tenable.com/security/tns-2021-10",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2021-10"
            },
            {
              "name": "https://www.oracle.com//security-alerts/cpujul2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2020-1967",
    "datePublished": "2020-04-21T13:45:15.136203Z",
    "dateReserved": "2019-12-03T00:00:00",
    "dateUpdated": "2024-09-17T03:13:46.200Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
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Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).\"},{\"lang\":\"es\",\"value\":\"Las aplicaciones de Servidor o Cliente que llaman a la funci\u00f3n SSL_check_chain() durante o despu\u00e9s del protocolo de enlace de TLS versi\u00f3n 1.3,  puede bloquear debido a una desreferencia del puntero NULL como resultado de un manejo incorrecto de la extensi\u00f3n TLS \\\"signature_algorithms_cert\\\". El bloqueo ocurre si se recibe un algoritmo de firma no comprobada o ni reconocido del peer. Esto podr\u00eda ser explotado por un peer malicioso en un ataque de Denegaci\u00f3n de Servicio. OpenSSL versiones 1.1.1d, 1.1.1e y 1.1.1f est\u00e1n afectadas por este problema. Este problema no afectaba a OpenSSL versiones anteriores a la versi\u00f3n  1.1.1d. 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Advisory\"]},{\"url\":\"https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202004-10\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20200424-0003/\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20200717-0004/\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4661\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openssl.org/news/secadv/20200421.txt\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com//security-alerts/cpujul2021.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuApr2021.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujan2021.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujul2020.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuoct2020.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuoct2021.html\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_20_05\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2020-03\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2020-04\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2020-11\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.tenable.com/security/tns-2021-10\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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