National Vulnerability Database

National Vulnerability Database

National Vulnerability
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There are 52 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2019-13565

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.

Published: July 26, 2019; 09:15:12 AM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
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.)

Published: July 26, 2019; 09:15:12 AM -04:00
V3: 4.9 MEDIUM
V2: 3.5 LOW
CVE-2017-17740

contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof 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.

Published: December 18, 2017; 01:29:00 AM -05:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2017-14159

slapd in OpenLDAP 2.4.45 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command, as demonstrated by openldap-initscript.

Published: September 05, 2017; 02:29:00 PM -04:00
V3: 4.7 MEDIUM
V2: 1.9 LOW
CVE-2016-4984

/usr/libexec/openldap/generate-server-cert.sh in openldap-servers sets weak permissions for the TLS certificate, which allows local users to obtain the TLS certificate by leveraging a race condition between the creation of the certificate, and the chmod to protect it.

Published: July 17, 2017; 09:18:06 AM -04:00
V3: 4.7 MEDIUM
V2: 1.9 LOW
CVE-2017-9287

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.

Published: May 29, 2017; 12:29:00 PM -04:00
V3: 6.5 MEDIUM
V2: 4.0 MEDIUM
CVE-2015-3276

The nss_parse_ciphers function in libraries/libldap/tls_m.c in OpenLDAP does not properly parse OpenSSL-style multi-keyword mode cipher strings, which might cause a weaker than intended cipher to be used and allow remote attackers to have unspecified impact via unknown vectors.

Published: December 07, 2015; 03:59:03 PM -05:00
V2: 5.0 MEDIUM
CVE-2015-6908

The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a denial of service (reachable assertion and application crash) via crafted BER data, as demonstrated by an attack against slapd.

Published: September 11, 2015; 12:59:12 PM -04:00
V2: 5.0 MEDIUM
CVE-2014-9713

The default slapd configuration in the Debian openldap package 2.4.23-3 through 2.4.39-1.1 allows remote authenticated users to modify the user's permissions and other user attributes via unspecified vectors.

Published: April 01, 2015; 10:59:00 AM -04:00
V2: 4.0 MEDIUM
CVE-2015-1546

Double free vulnerability in the get_vrFilter function in servers/slapd/filter.c in OpenLDAP 2.4.40 allows remote attackers to cause a denial of service (crash) via a crafted search query with a matched values control.

Published: February 12, 2015; 11:59:07 AM -05:00
V2: 5.0 MEDIUM
CVE-2015-1545

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.

Published: February 12, 2015; 11:59:06 AM -05:00
V2: 5.0 MEDIUM
CVE-2013-4449

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.

Published: February 05, 2014; 01:55:06 PM -05:00
V2: 4.3 MEDIUM
CVE-2013-5185

The ldapsearch command-line program in OpenLDAP in Apple Mac OS X before 10.9 does not properly process the minssf configuration setting, which allows remote attackers to obtain sensitive information by leveraging unintended weak encryption and sniffing the network.

Published: October 23, 2013; 11:48:52 PM -04:00
V2: 4.3 MEDIUM
CVE-2012-1164

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.

Published: June 29, 2012; 03:55:03 PM -04:00
V2: 2.6 LOW
CVE-2012-2668

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.

Published: June 16, 2012; 11:41:41 PM -04:00
V2: 4.3 MEDIUM
CVE-2011-4079

Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a denial of service (slapd crash) via a zero-length string that triggers a heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry.

Published: October 27, 2011; 04:55:01 PM -04:00
V2: 4.0 MEDIUM
CVE-2011-1081

modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service (daemon crash) via a relative Distinguished Name (DN) modification request (aka MODRDN operation) that contains an empty value for the OldDN field.

Published: March 19, 2011; 10:00:04 PM -04:00
V2: 5.0 MEDIUM
CVE-2011-1025

bind.cpp in back-ndb in OpenLDAP 2.4.x before 2.4.24 does not require authentication for the root Distinguished Name (DN), which allows remote attackers to bypass intended access restrictions via an arbitrary password.

Published: March 19, 2011; 10:00:03 PM -04:00
V2: 6.8 MEDIUM
CVE-2011-1024

chain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server.

Published: March 19, 2011; 10:00:03 PM -04:00
V2: 4.6 MEDIUM
CVE-2010-0212

OpenLDAP 2.4.22 allows remote attackers to cause a denial of service (crash) via a modrdn call with a zero-length RDN destination string, which is not properly handled by the smr_normalize function and triggers a NULL pointer dereference in the IA5StringNormalize function in schema_init.c, as demonstrated using the Codenomicon LDAPv3 test suite.

Published: July 28, 2010; 08:48:51 AM -04:00
V2: 5.0 MEDIUM