This update for openldap2 fixes the following issues :

bsc#1174154 - CVE-2020-15719 - This resolves an issue with x509 SAN's falling back to CN validation in violation of rfc6125.

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.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - openldap: ACL restrictions bypass due to sasl_ssf value being set permanently (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)

  - In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can     result in denial of service (daemon crash). (CVE-2020-12243)

  - libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party     package is asserting RFC6125 support. It considers CN even when there is a non-matching subjectAltName     (SAN). This is fixed in, for example, openldap-2.4.46-10.el8 in Red Hat Enterprise Linux. (CVE-2020-15719)

  - A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request     for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a     specially crafted request, causing a Denial of Service. (CVE-2020-25692)

  - A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed     by OpenLDAP's slapd server, to trigger an assertion failure. The highest threat from this vulnerability is     to system availability. (CVE-2020-25709)

  - A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious     packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this     vulnerability is to system availability. (CVE-2020-25710)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This update for openldap2 fixes the following issues :

  - bsc#1174154 - CVE-2020-15719 - This resolves an issue     with x509 SAN's falling back to CN validation in     violation of rfc6125.

This update was imported from the SUSE:SLE-15:Update update project.

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 :

  - libldap in certain third-party OpenLDAP packages has a     certificate-validation flaw when the third-party     package is asserting RFC6125 support. It considers CN     even when there is a non-matching subjectAltName (SAN).
    This is fixed in, for example, openldap-2.4.46-10.el8     in Red Hat Enterprise Linux.(CVE-2020-15719)

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.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - openldap: OpenLDAP SQL injection (CVE-2022-29155)

  - servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user     with access to search the directory can crash slapd by issuing a search including the Paged Results     control with a page size of 0. (CVE-2017-9287)

  - 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)

  - In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can     result in denial of service (daemon crash). (CVE-2020-12243)

  - libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party     package is asserting RFC6125 support. It considers CN even when there is a non-matching subjectAltName     (SAN). This is fixed in, for example, openldap-2.4.46-10.el8 in Red Hat Enterprise Linux. (CVE-2020-15719)

  - A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request     for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a     specially crafted request, causing a Denial of Service. (CVE-2020-25692)

  - A flaw was found in OpenLDAP. This flaw allows an attacker who can send a malicious packet to be processed     by OpenLDAP's slapd server, to trigger an assertion failure. The highest threat from this vulnerability is     to system availability. (CVE-2020-25709)

  - A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious     packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this     vulnerability is to system availability. (CVE-2020-25710)

  - An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate     Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
    (CVE-2020-36221)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the     saslAuthzTo validation, resulting in denial of service. (CVE-2020-36222)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter     control handling, resulting in denial of service (double free and out-of-bounds read). (CVE-2020-36223)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the     saslAuthzTo processing, resulting in denial of service. (CVE-2020-36224)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the     saslAuthzTo processing, resulting in denial of service. (CVE-2020-36225)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash     in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36226)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop     Cancel operation, resulting in denial of service. (CVE-2020-36227)

  - An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate     List Exact Assertion processing, resulting in denial of service. (CVE-2020-36228)

  - A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN     parsing in ad_keystring, resulting in denial of service. (CVE-2020-36229)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN     parsing in decode.c ber_next_element, resulting in denial of service. (CVE-2020-36230)

  - In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the     issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via     a short timestamp. This is related to schema_init.c and checkTime. (CVE-2021-27212)

  - A vulnerability was found in openldap. This security flaw causes a null pointer dereference in     ber_memalloc_x() function. (CVE-2023-2953)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

According to the version of the openldap packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - libldap in certain third-party OpenLDAP packages has a     certificate-validation flaw when the third-party     package is asserting RFC6125 support. It considers CN     even when there is a non-matching subjectAltName (SAN).
    This is fixed in, for example, openldap-2.4.46-10.el8     in Red Hat Enterprise Linux.(CVE-2020-15719)

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.

According to the versions of the openldap packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A NULL pointer dereference was found in OpenLDAP server     and was fixed in openldap 2.4.55, during a request for     renaming RDNs. An unauthenticated attacker could     remotely crash the slapd process by sending a specially     crafted request, causing a Denial of     Service.(CVE-2020-25692)

  - libldap in certain third-party OpenLDAP packages has a     certificate-validation flaw when the third-party     package is asserting RFC6125 support. It considers CN     even when there is a non-matching subjectAltName (SAN).
    This is fixed in, for example, openldap-2.4.46-10.el8     in Red Hat Enterprise Linux.(CVE-2020-15719)

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.

ID	Name	Product	Family	Published	Updated	Severity
140479	SUSE SLED15 / SLES15 Security Update : openldap2 (SUSE-SU-2020:2581-1)	Nessus	SuSE Local Security Checks	9/10/2020	1/13/2021	medium
196224	RHEL 5 : openldap (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	5/11/2024	5/11/2024	high
140572	openSUSE Security Update : openldap2 (openSUSE-2020-1416)	Nessus	SuSE Local Security Checks	9/14/2020	2/20/2024	medium
140971	EulerOS Virtualization for ARM 64 3.0.6.0 : openldap (EulerOS-SA-2020-2023)	Nessus	Huawei Local Security Checks	9/29/2020	2/19/2024	medium
196208	RHEL 6 : openldap (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	5/11/2024	5/11/2024	critical
139975	EulerOS 2.0 SP8 : openldap (EulerOS-SA-2020-1872)	Nessus	Huawei Local Security Checks	8/28/2020	2/22/2024	medium
140687	openSUSE Security Update : openldap2 (openSUSE-2020-1459)	Nessus	SuSE Local Security Checks	9/21/2020	2/20/2024	medium
147522	EulerOS Virtualization 2.9.1 : openldap (EulerOS-SA-2021-1618)	Nessus	Huawei Local Security Checks	3/10/2021	4/20/2021	medium

Detections

Analytics

Plugins Search

medium

high

medium

medium

critical

medium

medium

medium