Remote crash via crafted LDAP messages :

An invalid pointer dereference flaw was found in the way 389-ds-base handled LDAP bind requests. A remote unauthenticated attacker could use this flaw to make ns-slapd crash via a specially crafted LDAP bind request, resulting in denial of service. (CVE-2017-2668)

This update for 389-ds fixes the following issues :

  - CVE-2017-7551: 389-ds-base: Password brute-force     possible for locked account due to different return     codes (bsc#1051997)

  - CVE-2016-4992: 389-ds: Information disclosure via     repeated use of LDAP ADD operation (bsc#997256)

  - CVE-2016-5405: 389-ds: Password verification vulnerable     to timing attack (bsc#1007004)

  - CVE-2017-2591: 389-ds-base: Heap buffer overflow in     uiduniq.c (bsc#1020670)

  - CVE-2017-2668 389-ds Remote crash via crafted LDAP     messages (bsc#1069067)

  - CVE-2016-0741: 389-ds: worker threads do not detect     abnormally closed connections causing DoS (bsc#1069074)

Security Fix(es) :

  - An invalid pointer dereference flaw was found in the way     389-ds-base handled LDAP bind requests. A remote     unauthenticated attacker could use this flaw to make     ns-slapd crash via a specially crafted LDAP bind     request, resulting in denial of service. (CVE-2017-2668)

Bug Fix(es) :

  - Previously, the 'deref' plug-in failed to dereference     attributes that use distinguished name (DN) syntax, such     as 'uniqueMember'. With this patch, the 'deref' plug-in     can dereference such attributes and additionally 'Name     and Optional UID' syntax. As a result, the 'deref'     plug-in now supports any syntax.

An update for 389-ds-base is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

389 Directory Server is an LDAP version 3 (LDAPv3) compliant server.
The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

Security Fix(es) :

* An invalid pointer dereference flaw was found in the way 389-ds-base handled LDAP bind requests. A remote unauthenticated attacker could use this flaw to make ns-slapd crash via a specially crafted LDAP bind request, resulting in denial of service. (CVE-2017-2668)

Red Hat would like to thank Joachim Jabs (F24) for reporting this issue.

Bug Fix(es) :

* Previously, when adding a filtered role definition that uses the 'nsrole' virtual attribute in the filter, Directory Server terminated unexpectedly. A patch has been applied, and now the roles plug-in ignores all virtual attributes. As a result, an error message is logged when an invalid filter is used. Additionally, the role is deactivated and Directory Server no longer fails. (BZ#1429498)

* In a replication topology, Directory Server incorrectly calculated the size of string format entries when a lot of entries were deleted.
The calculated size of entries was smaller than the actual required size. Consequently, Directory Server allocated insufficient memory and terminated unexpectedly when the data was written to it. With this update, the size of string format entries is now calculated correctly in the described situation and Directory Server no longer terminates unexpectedly. (BZ#1429495)

According to the version of the 389-ds-base packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - An invalid pointer dereference flaw was found in the     way 389-ds-base handled LDAP bind requests. A remote     unauthenticated attacker could use this flaw to make     ns-slapd crash via a specially crafted LDAP bind     request, resulting in denial of service.
    (CVE-2017-2668)

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.

An update for 389-ds-base is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

389 Directory Server is an LDAP version 3 (LDAPv3) compliant server.
The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

Security Fix(es) :

* An invalid pointer dereference flaw was found in the way 389-ds-base handled LDAP bind requests. A remote unauthenticated attacker could use this flaw to make ns-slapd crash via a specially crafted LDAP bind request, resulting in denial of service. (CVE-2017-2668)

Red Hat would like to thank Joachim Jabs (F24) for reporting this issue.

Bug Fix(es) :

* Previously, the 'deref' plug-in failed to dereference attributes that use distinguished name (DN) syntax, such as 'uniqueMember'. With this patch, the 'deref' plug-in can dereference such attributes and additionally 'Name and Optional UID' syntax. As a result, the 'deref' plug-in now supports any syntax. (BZ#1435365)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
99712	Amazon Linux AMI : 389-ds-base (ALAS-2017-824)	Nessus	Amazon Linux Local Security Checks	2017/4/28	2025/12/23	medium
105366	openSUSE Security Update : 389-ds (openSUSE-2017-1396)	Nessus	SuSE Local Security Checks	2017/12/19	2025/11/11	critical
99300	Scientific Linux Security Update : 389-ds-base on SL6.x i386/x86_64 (20170411)	Nessus	Scientific Linux Local Security Checks	2017/4/12	2025/12/26	medium
99343	RHEL 7 : 389-ds-base (RHSA-2017:0920)	Nessus	Red Hat Local Security Checks	2017/4/13	2025/12/25	medium
99953	EulerOS 2.0 SP2 : 389-ds-base (EulerOS-SA-2017-1087)	Nessus	Huawei Local Security Checks	2017/5/3	2025/12/22	medium
99339	RHEL 6 : 389-ds-base (RHSA-2017:0893)	Nessus	Red Hat Local Security Checks	2017/4/13	2025/12/25	medium

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