CVE-2019-13057

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.)

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.)

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.)

Updated openldap packages fix security vulnerabilities: 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).

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.

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.

These are all security issues fixed in the libldap-2_4-2-2.4.59-69.3 package on the GA media of openSUSE Tumbleweed.

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).

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 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).

This update for openldap2 fixes the following issues:

• 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).

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)

USN-4078-1 fixed several vulnerabilities in openldap. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

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)