{ "containers": { "cna": { "affected": [ { "product": "OpenSSL", "vendor": "OpenSSL", "versions": [ { "status": "affected", "version": "Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f)" } ] } ], "credits": [ { "lang": "en", "value": "Bernd Edlinger" } ], "datePublic": "2020-04-21T00:00:00", "descriptions": [ { "lang": "en", "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)." } ], "metrics": [ { "other": { "content": { "lang": "eng", "url": "https://www.openssl.org/policies/secpolicy.html#High", "value": "High" }, "type": "unknown" } } ], "problemTypes": [ { "descriptions": [ { "description": "NULL pointer dereference", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-10-20T10:39:19", "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5", "shortName": "openssl" }, "references": [ { "name": "FreeBSD-SA-20:11", "tags": [ "vendor-advisory", "x_refsource_FREEBSD" ], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc" }, { "name": "DSA-4661", "tags": [ "vendor-advisory", "x_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", "tags": [ "mailing-list", "x_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?", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E" }, { "name": "[tomcat-dev] 20200422 Re: Time for Tomcat Native 1.2.24?", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E" }, { "name": "[tomcat-dev] 20200423 Re: Time for Tomcat Native 1.2.24?", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E" }, { "name": "GLSA-202004-10", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202004-10" }, { "name": "FEDORA-2020-fcc91a28e8", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/" }, { "name": "FEDORA-2020-da2d1ef2d7", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/" }, { "name": "20200501 CVE-2020-1967: proving sigalg != NULL", "tags": [ "mailing-list", "x_refsource_FULLDISC" ], "url": "http://seclists.org/fulldisclosure/2020/May/5" }, { "name": "FEDORA-2020-d7b29838f6", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/" }, { "name": "openSUSE-SU-2020:0933", "tags": [ "vendor-advisory", "x_refsource_SUSE" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html" }, { "name": "openSUSE-SU-2020:0945", "tags": [ "vendor-advisory", "x_refsource_SUSE" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com/security-alerts/cpujul2020.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.tenable.com/security/tns-2020-03" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.openssl.org/news/secadv/20200421.txt" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://security.netapp.com/advisory/ntap-20200424-0003/" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/irsl/CVE-2020-1967" }, { "tags": [ "x_refsource_MISC" ], "url": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.synology.com/security/advisory/Synology_SA_20_05" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.tenable.com/security/tns-2020-04" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://security.netapp.com/advisory/ntap-20200717-0004/" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com/security-alerts/cpujan2021.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.tenable.com/security/tns-2020-11" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com/security-alerts/cpuApr2021.html" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.tenable.com/security/tns-2021-10" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com//security-alerts/cpujul2021.html" }, { "tags": [ "x_refsource_MISC" ], "url": "https://www.oracle.com/security-alerts/cpuoct2021.html" } ], "title": "Segmentation fault in SSL_check_chain", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "openssl-security@openssl.org", "DATE_PUBLIC": "2020-04-21", "ID": "CVE-2020-1967", "STATE": "PUBLIC", "TITLE": "Segmentation fault in SSL_check_chain" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "OpenSSL", "version": { "version_data": [ { "version_value": "Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f)" } ] } } ] }, "vendor_name": "OpenSSL" } ] } }, "credit": [ { "lang": "eng", "value": "Bernd Edlinger" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "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" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T06:54:00.398Z" }, "title": "CVE Program Container", "references": [ { "name": "FreeBSD-SA-20:11", "tags": [ "vendor-advisory", "x_refsource_FREEBSD", "x_transferred" ], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc" }, { "name": "DSA-4661", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "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", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2020/04/22/2" }, { "name": "[tomcat-dev] 20200422 Time for Tomcat Native 1.2.24?", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E" }, { "name": "[tomcat-dev] 20200422 Re: Time for Tomcat Native 1.2.24?", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E" }, { "name": "[tomcat-dev] 20200423 Re: Time for Tomcat Native 1.2.24?", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E" }, { "name": "GLSA-202004-10", "tags": [ "vendor-advisory", "x_refsource_GENTOO", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202004-10" }, { "name": "FEDORA-2020-fcc91a28e8", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/" }, { "name": "FEDORA-2020-da2d1ef2d7", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/" }, { "name": "20200501 CVE-2020-1967: proving sigalg != NULL", "tags": [ "mailing-list", "x_refsource_FULLDISC", "x_transferred" ], "url": "http://seclists.org/fulldisclosure/2020/May/5" }, { "name": "FEDORA-2020-d7b29838f6", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/" }, { "name": "openSUSE-SU-2020:0933", "tags": [ "vendor-advisory", "x_refsource_SUSE", "x_transferred" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html" }, { "name": "openSUSE-SU-2020:0945", "tags": [ "vendor-advisory", "x_refsource_SUSE", "x_transferred" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.oracle.com/security-alerts/cpujul2020.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.tenable.com/security/tns-2020-03" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.openssl.org/news/secadv/20200421.txt" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20200424-0003/" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/irsl/CVE-2020-1967" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.synology.com/security/advisory/Synology_SA_20_05" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.tenable.com/security/tns-2020-04" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20200717-0004/" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.oracle.com/security-alerts/cpujan2021.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.tenable.com/security/tns-2020-11" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.oracle.com/security-alerts/cpuApr2021.html" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://www.tenable.com/security/tns-2021-10" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://www.oracle.com//security-alerts/cpujul2021.html" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "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" }