Vulnerabilities > CVE-2019-13057
Attack vector
NETWORK Attack complexity
LOW Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)
Vulnerable Configurations
Nessus
NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2358.NASL description According to the versions of the openldap packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.(CVE-2019-13565) - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-10 plugin id 131850 published 2019-12-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131850 title EulerOS 2.0 SP2 : openldap (EulerOS-SA-2019-2358) NASL family MacOS X Local Security Checks NASL id MACOS_HT210788.NASL description The remote host is running a version of macOS / Mac OS X that is 10.13.x prior to 10.13.6 Security Update 2019-007, 10.14.x prior to 10.14.6 Security Update 2019-002, or 10.15.x prior to 10.15.2. It is, therefore, affected by multiple vulnerabilities : - slapd in OpenLDAP before 2.4.30 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via an LDAP search query with attrsOnly set to true, which causes empty attributes to be returned. (CVE-2012-1164) - libraries/libldap/tls_m.c in OpenLDAP, possibly 2.4.31 and earlier, when using the Mozilla NSS backend, always uses the default cipher suite even when TLSCipherSuite is set, which might cause OpenLDAP to use weaker ciphers than intended and make it easier for remote attackers to obtain sensitive information. (CVE-2012-2668) - The rwm overlay in OpenLDAP 2.4.23, 2.4.36, and earlier does not properly count references, which allows remote attackers to cause a denial of service (slapd crash) by unbinding immediately after a search request, which triggers rwm_conn_destroy to free the session context while it is being used by rwm_op_search. (CVE-2013-4449) - The deref_parseCtrl function in servers/slapd/overlays/deref.c in OpenLDAP 2.4.13 through 2.4.40 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an empty attribute list in a deref control in a search request. (CVE-2015-1545) - tcpdump before 4.9.3 has a heap-based buffer over-read related to aoe_print in print-aoe.c and lookup_emem in addrtoname.c. (CVE-2017-16808) - tcpdump before 4.9.3 mishandles the printing of SMB data (issue 1 of 2). (CVE-2018-10103) - tcpdump before 4.9.3 mishandles the printing of SMB data (issue 2 of 2). (CVE-2018-10105) - The LDP parser in tcpdump before 4.9.3 has a buffer over-read in print-ldp.c:ldp_tlv_print(). (CVE-2018-14461) - The ICMP parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp.c:icmp_print(). (CVE-2018-14462) - The VRRP parser in tcpdump before 4.9.3 has a buffer over-read in print-vrrp.c:vrrp_print(). (CVE-2018-14463) - The LMP parser in tcpdump before 4.9.3 has a buffer over-read in print-lmp.c:lmp_print_data_link_subobjs(). (CVE-2018-14464) - The RSVP parser in tcpdump before 4.9.3 has a buffer over-read in print-rsvp.c:rsvp_obj_print(). (CVE-2018-14465) - The Rx parser in tcpdump before 4.9.3 has a buffer over- read in print-rx.c:rx_cache_find() and rx_cache_insert(). (CVE-2018-14466) - The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_MP). (CVE-2018-14467) - The FRF.16 parser in tcpdump before 4.9.3 has a buffer over-read in print-fr.c:mfr_print(). (CVE-2018-14468) - The IKEv1 parser in tcpdump before 4.9.3 has a buffer over-read in print-isakmp.c:ikev1_n_print(). (CVE-2018-14469) - The Babel parser in tcpdump before 4.9.3 has a buffer over-read in print-babel.c:babel_print_v2(). (CVE-2018-14470) - The command-line argument parser in tcpdump before 4.9.3 has a buffer overflow in tcpdump.c:get_next_file(). (CVE-2018-14879) - The OSPFv3 parser in tcpdump before 4.9.3 has a buffer over-read in print-ospf6.c:ospf6_print_lshdr(). (CVE-2018-14880) - The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_RESTART). (CVE-2018-14881) - The ICMPv6 parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp6.c. (CVE-2018-14882) - The IEEE 802.11 parser in tcpdump before 4.9.3 has a buffer over-read in print-802_11.c for the Mesh Flags subfield. (CVE-2018-16227) - The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in print-hncp.c:print_prefix(). (CVE-2018-16228) - The DCCP parser in tcpdump before 4.9.3 has a buffer over-read in print-dccp.c:dccp_print_option(). (CVE-2018-16229) - The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_attr_print() (MP_REACH_NLRI). (CVE-2018-16230) - The BGP parser in tcpdump before 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() because of unlimited recursion. (CVE-2018-16300) - libpcap before 1.9.1, as used in tcpdump before 4.9.3, has a buffer overflow and/or over-read because of errors in pcapng reading. (CVE-2018-16301) - The SMB parser in tcpdump before 4.9.3 has buffer over- reads in print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN. (CVE-2018-16451) - The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion. (CVE-2018-16452) - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.) (CVE-2019-13057) - An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user. (CVE-2019-13565) - rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request. (CVE-2019-15161) - rpcapd/daemon.c in libpcap before 1.9.1 on non-Windows platforms provides details about why authentication failed, which might make it easier for attackers to enumerate valid usernames. (CVE-2019-15162) - rpcapd/daemon.c in libpcap before 1.9.1 allows attackers to cause a denial of service (NULL pointer dereference and daemon crash) if a crypt() call fails. (CVE-2019-15163) - rpcapd/daemon.c in libpcap before 1.9.1 allows SSRF because a URL may be provided as a capture source. (CVE-2019-15164) - sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory. (CVE-2019-15165) - lmp_print_data_link_subobjs() in print-lmp.c in tcpdump before 4.9.3 lacks certain bounds checks. (CVE-2019-15166) - In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read. (CVE-2019-15903) Note that Nessus has not tested for this issue but has instead relied only on the operating system last seen 2020-06-01 modified 2020-06-02 plugin id 131957 published 2019-12-12 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131957 title macOS 10.15.x < 10.15.2 / 10.14.x < 10.14.6 Security Update 2019-002 / 10.13.x < 10.13.6 Security Update 2019-007 NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-2395-1.NASL description This update for openldap2 fixes the following issues : Security issue fixed : CVE-2019-13565: Fixed an authentication bypass when using SASL authentication and session encryption (bsc#1143194). CVE-2019-13057: Fixed an issue with delegated database admin privileges (bsc#1143273). CVE-2017-17740: When both the nops module and the member of overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation. (bsc#1073313) Non-security issues fixed: Fixed broken shebang line in openldap_update_modules_path.sh (bsc#1114845). Create files in /var/lib/ldap/ during initial start to allow for transactional updates (bsc#1111388) Fixed incorrect post script call causing tmpfiles creation not to be run (bsc#1111388). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 129043 published 2019-09-19 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129043 title SUSE SLED15 / SLES15 Security Update : openldap2 (SUSE-SU-2019:2395-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1481.NASL description According to the versions of the openldap packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) - An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.(CVE-2019-13565) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-30 modified 2020-04-16 plugin id 135643 published 2020-04-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135643 title EulerOS Virtualization 3.0.2.2 : openldap (EulerOS-SA-2020-1481) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2157.NASL description This update for openldap2 fixes the following issues : Security issue fixed : - CVE-2019-13565: Fixed an authentication bypass when using SASL authentication and session encryption (bsc#1143194). - CVE-2019-13057: Fixed an issue with delegated database admin privileges (bsc#1143273). - CVE-2017-17740: When both the nops module and the member of overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation. (bsc#1073313) Non-security issues fixed : - Fixed broken shebang line in openldap_update_modules_path.sh (bsc#1114845). - Create files in /var/lib/ldap/ during initial start to allow for transactional updates (bsc#1111388) - Fixed incorrect post script call causing tmpfiles creation not to be run (bsc#1111388). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 129280 published 2019-09-24 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129280 title openSUSE Security Update : openldap2 (openSUSE-2019-2157) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4078-1.NASL description It was discovered that OpenLDAP incorrectly handled rootDN delegation. A database administrator could use this issue to request authorization as an identity from another database, contrary to expectations. (CVE-2019-13057) It was discovered that OpenLDAP incorrectly handled SASL authentication and session encryption. After a first SASL bind was completed, it was possible to obtain access by performing simple binds, contrary to expectations. (CVE-2019-13565). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 127794 published 2019-08-12 reporter Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127794 title Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : openldap vulnerabilities (USN-4078-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-1210-1.NASL description This update for openldap2 fixes the following issues : CVE-2020-12243: Fixed a denial of service related to recursive filters (bsc#1170771). CVE-2019-13565: Fixed an authentication bypass caused by incorrect authorization of another connection, granting excess connection rights (bsc#1143194). CVE-2019-13057: Fixed an issue with improper authorization with delegated database admin privileges (bsc#1143273). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-23 modified 2020-05-15 plugin id 136650 published 2020-05-15 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136650 title SUSE SLES12 Security Update : openldap2 (SUSE-SU-2020:1210-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-2390-1.NASL description This update for openldap2 fixes the following issues : Security issues fixed : CVE-2019-13565: Fixed ssf memory reuse that leads to incorrect authorization of another connection, granting excess connection rights (ssf) (bsc#1143194). CVE-2019-13057: Fixed rootDN of a backend that may proxyauth incorrectly to another backend, violating multi-tenant isolation (bsc#1143273). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 128991 published 2019-09-18 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128991 title SUSE SLED12 / SLES12 Security Update : openldap2 (SUSE-SU-2019:2390-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1996.NASL description According to the version of the openldap packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-09-24 plugin id 129189 published 2019-09-24 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129189 title EulerOS 2.0 SP3 : openldap (EulerOS-SA-2019-1996) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1939.NASL description According to the version of the openldap packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability : - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 128942 published 2019-09-17 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128942 title EulerOS Virtualization for ARM 64 3.0.2.0 : openldap (EulerOS-SA-2019-1939) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1914.NASL description According to the version of the openldap packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-09-16 plugin id 128837 published 2019-09-16 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128837 title EulerOS 2.0 SP5 : openldap (EulerOS-SA-2019-1914) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2087.NASL description According to the version of the openldap packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - An issue was discovered in the server in OpenLDAP before 2.4.48. When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.)(CVE-2019-13057) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-03 modified 2019-09-30 plugin id 129446 published 2019-09-30 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129446 title EulerOS 2.0 SP8 : openldap (EulerOS-SA-2019-2087) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2176.NASL description This update for openldap2 fixes the following issues : Security issue fixed : - CVE-2019-13565: Fixed an authentication bypass when using SASL authentication and session encryption (bsc#1143194). - CVE-2019-13057: Fixed an issue with delegated database admin privileges (bsc#1143273). - CVE-2017-17740: When both the nops module and the member of overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation. (bsc#1073313) Non-security issues fixed : - Fixed broken shebang line in openldap_update_modules_path.sh (bsc#1114845). - Create files in /var/lib/ldap/ during initial start to allow for transactional updates (bsc#1111388) - Fixed incorrect post script call causing tmpfiles creation not to be run (bsc#1111388). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 129342 published 2019-09-25 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129342 title openSUSE Security Update : openldap2 (openSUSE-2019-2176) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1891.NASL description Several security vulnerabilities were discovered in openldap, a server and tools to provide a standalone directory service. CVE-2019-13057 When the server administrator delegates rootDN (database admin) privileges for certain databases but wants to maintain isolation (e.g., for multi-tenant deployments), slapd does not properly stop a rootDN from requesting authorization as an identity from another database during a SASL bind or with a proxyAuthz (RFC 4370) control. (It is not a common configuration to deploy a system where the server administrator and a DB administrator enjoy different levels of trust.) CVE-2019-13565 When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user. For Debian 8 last seen 2020-06-01 modified 2020-06-02 plugin id 127927 published 2019-08-20 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127927 title Debian DLA-1891-1 : openldap security update
References
- https://www.openldap.org/lists/openldap-announce/201907/msg00001.html
- https://www.openldap.org/its/?findid=9038
- https://usn.ubuntu.com/4078-1/
- https://lists.debian.org/debian-lts-announce/2019/08/msg00024.html
- https://usn.ubuntu.com/4078-2/
- https://security.netapp.com/advisory/ntap-20190822-0004/
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html
- https://support.apple.com/kb/HT210788
- https://seclists.org/bugtraq/2019/Dec/23
- http://seclists.org/fulldisclosure/2019/Dec/26
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365
- https://www.oracle.com/security-alerts/cpuapr2022.html