RedHat: RHSA-2018-2757:01 Moderate: 389-ds-base security and bug fix update
Summary
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: race condition on reference counter leads to DoS using
persistent search (CVE-2018-10850)
* 389-ds-base: ldapsearch with server side sort allows users to cause a
crash (CVE-2018-10935)
* 389-ds-base: Server crash through modify command with large DN
(CVE-2018-14624)
* 389-ds-base: Crash in delete_passwdPolicy when persistent search
connections are terminated unexpectedly (CVE-2018-14638)
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-2018-10850 issue was discovered by Thierry Bordaz (Red Hat) and the
CVE-2018-14638 issue was discovered by Viktor Ashirov (Red Hat).
Bug Fix(es):
* Previously, the nucn-stans framework was enabled by default in Directory
Server, but the framework is not stable. As a consequence, deadlocks and
file descriptor leaks could occur. This update changes the default value of
the nsslapd-enable-nunc-stans parameter to "off". As a result, Directory
Server is now stable. (BZ#1614836)
* When a search evaluates the "shadowAccount" entry, Directory Server adds
the shadow attributes to the entry. If the fine-grained password policy is
enabled, the "shadowAccount" entry can contain its own "pwdpolicysubentry"
policy attribute. Previously, to retrieve this attribute, the server
started an internal search for each "shadowAccount" entry, which was
unnecessary because the entry was already known to the server. With this
update, Directory Server only starts internal searches if the entry is not
known. As a result, the performance of searches, such as response time and
throughput, is improved. (BZ#1615924)
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the 389 server service will be restarted
automatically.
References
https://access.redhat.com/security/cve/CVE-2018-10850 https://access.redhat.com/security/cve/CVE-2018-10935 https://access.redhat.com/security/cve/CVE-2018-14624 https://access.redhat.com/security/cve/CVE-2018-14638 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Client Optional (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
x86_64:
389-ds-base-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
x86_64:
389-ds-base-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
ppc64le:
389-ds-base-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.ppc64le.rpm
x86_64:
389-ds-base-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
aarch64:
389-ds-base-1.3.7.5-28.el7_5.aarch64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.aarch64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.aarch64.rpm
ppc64le:
389-ds-base-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.ppc64le.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
ppc64:
389-ds-base-1.3.7.5-28.el7_5.ppc64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.ppc64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.ppc64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.ppc64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.ppc64.rpm
ppc64le:
389-ds-base-debuginfo-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.ppc64le.rpm
s390x:
389-ds-base-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.s390x.rpm
x86_64:
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
aarch64:
389-ds-base-debuginfo-1.3.7.5-28.el7_5.aarch64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.aarch64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.aarch64.rpm
ppc64le:
389-ds-base-debuginfo-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.ppc64le.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.ppc64le.rpm
s390x:
389-ds-base-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.s390x.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.s390x.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
389-ds-base-1.3.7.5-28.el7_5.src.rpm
x86_64:
389-ds-base-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-libs-1.3.7.5-28.el7_5.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
389-ds-base-debuginfo-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-devel-1.3.7.5-28.el7_5.x86_64.rpm
389-ds-base-snmp-1.3.7.5-28.el7_5.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x
Bugs Fixed
1588056 - CVE-2018-10850 389-ds-base: race condition on reference counter leads to DoS using persistent search
1613606 - CVE-2018-10935 389-ds-base: ldapsearch with server side sort allows users to cause a crash
1614836 - Disable nunc-stans by default [rhel-7.5.z]
1614861 - CVE-2018-10935 389-ds-base: ldapsearch with server side sort crashes the ldap server [rhel-7.5.z]
1615924 - Fine grained password policy can impact search performance [rhel-7.5.z]
1619450 - CVE-2018-14624 389-ds-base: Server crash through modify command with large DN
1623247 - CVE-2018-14624 389-ds-base: Server crash through modify command with large DN [rhel-7.5.z]
1626079 - CVE-2018-14638 389-ds-base: Crash in delete_passwdPolicy when persistent search connections are terminated unexpectedly