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) :

* 389-ds-base: remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c (CVE-2018-1054)

* 389-ds-base: Authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c (CVE-2017-15135)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

The CVE-2017-15135 issue was discovered by Martin Poole (Red Hat).

Bug Fix(es) :

* Previously, if an administrator configured an index for an attribute with a specific matching rule in the 'nsMatchingRule' parameter, Directory Server did not use the retrieved indexer. As a consequence, Directory Server did not index the values of this attribute with the specified matching rules, and searches with extended filters were unindexed. With this update, Directory Server uses the retrieved indexer that processes the specified matching rule. As a result, searches using extended filters with a specified matching rule are now indexed. (BZ#1536343)

This update for 389-ds fixes the following issues :

The following security vulnerabilities were addressed :

CVE-2018-10850: Fixed a race condition on reference counter that would lead to a denial of service using persistent search (bsc#1096368)

CVE-2017-15134: Fixed a remote denial of service via search filters in slapi_filter_sprintf in slapd/util.c (bsc#1076530)

CVE-2017-15135: Fixed authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c (bsc#1076530)

CVE-2018-10935: Fixed an issue that allowed users to cause a crash via ldapsearch with server side sorts (bsc#1105606)

CVE-2018-14624: The lock controlling the error log was not correctly used when re-opening the log file in log__error_emergency(), allowing an attacker to send a flood of modifications to a very large DN, which could have caused slapd to crash (bsc#1106699).

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 Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-0515 advisory.

    - Resolves: Bug 1544415 - CVE-2017-15135 389-ds-base: Authentication bypass due to lack of size check in     slapi_ct_memcmp function in ch_malloc.c (fix cherry-pick error)
    - Resolves: Bug 1544415 - CVE-2017-15135 389-ds-base: Authentication bypass due to lack of size check in     slapi_ct_memcmp function in ch_malloc.c
    - Resolves: Bug 1543798 - EMBARGOED CVE-2018-1054 389-ds-base: remote Denial of Service (DoS) via search     filters in SetUnicodeStringFromUTF_8 in collate.c

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0515 advisory.

  - 389-ds-base: Authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c     (CVE-2017-15135)

  - 389-ds-base: remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c     (CVE-2018-1054)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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) :

* 389-ds-base: remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c (CVE-2018-1054)

* 389-ds-base: Authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c (CVE-2017-15135)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

The CVE-2017-15135 issue was discovered by Martin Poole (Red Hat).

Authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c :

It was found that 389-ds-base did not always handle internal hash comparison operations correctly during the authentication process. A remote, unauthenticated attacker could potentially use this flaw to bypass the authentication process under very rare and specific circumstances. (CVE-2017-15135)

Remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c :

An out-of-bounds memory read flaw was found in the way 389-ds-base handled certain LDAP search filters. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.
(CVE-2018-1054)

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

  - It was found that 389-ds-base since 1.3.6.1 up to and     including 1.4.0.3 did not always handle internal hash     comparison operations correctly during the     authentication process. A remote, unauthenticated     attacker could potentially use this flaw to bypass the     authentication process under very rare and specific     circumstances.(CVE-2017-15135)

  - An out-of-bounds memory read flaw was found in the way     389-ds-base handled certain LDAP search filters. A     remote, unauthenticated attacker could potentially use     this flaw to make ns-slapd crash via a specially     crafted LDAP request, thus resulting in denial of     service.(CVE-2018-1054)

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 NewStart CGSL host, running version MAIN 5.04, has 389-ds-base packages installed that are affected by multiple vulnerabilities:

  - An out-of-bounds memory read flaw was found in the way     389-ds-base handled certain LDAP search filters. A     remote, unauthenticated attacker could potentially use     this flaw to make ns-slapd crash via a specially crafted     LDAP request, thus resulting in denial of service.
    (CVE-2018-1054)

  - It was found that 389-ds-base did not always handle     internal hash comparison operations correctly during the     authentication process. A remote, unauthenticated     attacker could potentially use this flaw to bypass the     authentication process under very rare and specific     circumstances. (CVE-2017-15135)

  - A stack buffer overflow flaw was found in the way     389-ds-base handled certain LDAP search filters. A     remote, unauthenticated attacker could potentially use     this flaw to make ns-slapd crash via a specially crafted     LDAP request, thus resulting in denial of service.
    (CVE-2017-15134)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2018-2619:01 advisory.

    * 389-ds-base: remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c     (CVE-2018-1054)
      * 389-ds-base: Authentication bypass due to lack of size check in slapi_ct_memcmp function in     ch_malloc.c (CVE-2017-15135)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - 389-ds-base: remote Denial of Service (DoS) via search     filters in SetUnicodeStringFromUTF_8 in collate.c     (CVE-2018-1054)

  - 389-ds-base: Authentication bypass due to lack of size     check in slapi_ct_memcmp function in ch_malloc.c     (CVE-2017-15135)

Bug Fix(es) :

  - Previously, if an administrator configured an index for     an attribute with a specific matching rule in the     'nsMatchingRule' parameter, Directory Server did not use     the retrieved indexer. As a consequence, Directory     Server did not index the values of this attribute with     the specified matching rules, and searches with extended     filters were unindexed. With this update, Directory     Server uses the retrieved indexer that processes the     specified matching rule. As a result, searches using     extended filters with a specified matching rule are now     indexed.

Security Fix(es) :

  - 389-ds-base: remote Denial of Service (DoS) via search     filters in SetUnicodeStringFromUTF_8 in collate.c     (CVE-2018-1054)

  - 389-ds-base: Authentication bypass due to lack of size     check in slapi_ct_memcmp function in ch_malloc.c     (CVE-2017-15135)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
107273	CentOS 7 : 389-ds-base (CESA-2018:0414)	Nessus	CentOS Local Security Checks	2018/3/12	2025/10/24	high
124855	SUSE SLED15 / SLES15 Security Update : 389-ds (SUSE-SU-2019:1207-1)	Nessus	SuSE Local Security Checks	2019/5/13	2025/3/20	high
108320	Oracle Linux 6 : 389-ds-base (ELSA-2018-0515)	Nessus	Oracle Linux Local Security Checks	2018/3/14	2025/4/7	high
108330	RHEL 6 : 389-ds-base (RHSA-2018:0515)	Nessus	Red Hat Local Security Checks	2018/3/14	2025/4/7	high
108342	CentOS 6 : 389-ds-base (CESA-2018:0515)	Nessus	CentOS Local Security Checks	2018/3/15	2025/4/7	high
109134	Amazon Linux 2 : 389-ds-base (ALAS-2018-980)	Nessus	Amazon Linux Local Security Checks	2018/4/18	2025/4/4	high
109475	EulerOS 2.0 SP2 : 389-ds-base (EulerOS-SA-2018-1077)	Nessus	Huawei Local Security Checks	2018/5/2	2025/4/1	high
127155	NewStart CGSL MAIN 5.04 : 389-ds-base Multiple Vulnerabilities (NS-SA-2019-0009)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2025/2/25	high
290122	MiracleLinux 4 : 389-ds-base-1.2.11.15-94.AXS4 (AXSA:2018-2619:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	high
107209	Scientific Linux Security Update : 389-ds-base on SL7.x x86_64 (20180306)	Nessus	Scientific Linux Local Security Checks	2018/3/8	2025/10/24	high
108363	Scientific Linux Security Update : 389-ds-base on SL6.x i386/x86_64 (20180313)	Nessus	Scientific Linux Local Security Checks	2018/3/15	2025/4/7	high
126439	SUSE SLED15 / SLES15 Security Update : 389-ds (SUSE-SU-2019:1207-2)	Nessus	SuSE Local Security Checks	2019/7/2	2025/2/25	high

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