CVE-2020-1967

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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).
Overview
  • CVE ID
  • CVE-2020-1967
  • Assigner
  • openssl-security@openssl.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-21T14:15:11
  • Last Modified Date
  • 2021-12-10T17:11:06
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* 1 OR 1.1.1d 1.1.1f
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:application_server:12.1.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.3.0.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.4.0.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 5.6.48
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 5.7.0 5.7.30
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.0.20
cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:* 1 OR 8.0.20
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* 1 OR 4.0.12
cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.0.20
cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:* 1 OR 8.0.21
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:windows:*:* 1 OR 7.3
cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:* 1 OR 9.5
cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:jdedwards:enterpriseone:*:*:*:*:*:*:*:* 1 OR 9.2.5.0
cpe:2.3:a:tenable:log_correlation_engine:*:*:*:*:*:*:*:* 1 OR 6.0.9
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb563247aef3e83dda7679c43f9649270462e5b1 Mailing List Patch Vendor Advisory
https://www.openssl.org/news/secadv/20200421.txt Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc Patch Third Party Advisory
https://www.debian.org/security/2020/dsa-4661 Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/04/22/2 Mailing List Third Party Advisory
https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee@%3Cdev.tomcat.apache.org%3E Mailing List Third Party Advisory
https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345@%3Cdev.tomcat.apache.org%3E Mailing List Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440 Third Party Advisory
https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064@%3Cdev.tomcat.apache.org%3E Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202004-10 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200424-0003/ Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/ Third Party Advisory
https://www.tenable.com/security/tns-2020-03 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/ Third Party Advisory
https://github.com/irsl/CVE-2020-1967 Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2020/May/5 Mailing List Third Party Advisory
http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html Third Party Advisory VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/ Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_05 Third Party Advisory
https://www.tenable.com/security/tns-2020-04 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20200717-0004/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Patch Third Party Advisory
https://www.tenable.com/security/tns-2020-11 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Patch Third Party Advisory
https://www.tenable.com/security/tns-2021-10 Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Patch Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-1967
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1967
History
Created Old Value New Value Data Type Notes
2022-05-10 06:41:47 Added to TrackCVE
2022-12-04 15:19:16 2020-04-21T14:15Z 2020-04-21T14:15:11 CVE Published Date updated
2022-12-04 15:19:16 2021-12-10T17:11:06 CVE Modified Date updated
2022-12-04 15:19:16 Analyzed Vulnerability Status updated