cvelistv5 - cve-2018-10935

cve-2018-10935

Vulnerability from cvelistv5

Published

2018-09-11 15:00

Modified

2024-08-05 07:54

Severity ?

6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

A flaw was found in the 389 Directory Server that allows users to cause a crash in the LDAP server using ldapsearch with server side sort.

References

URL	Tags
secalert@redhat.com	http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2018:2757	Third Party Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10935	Issue Tracking, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2018/08/msg00032.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2018:2757	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10935	Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2018/08/msg00032.html	Third Party Advisory

Impacted products

Vendor

Product

Version

▼

Red Hat

389-ds-base

Version: n/a

Show details on NVD website

JSON

To clipboard

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A flaw was found in the 389 Directory Server that allows users to cause a crash in the LDAP server using ldapsearch with server side sort. 389 Directory Server Contains an input validation vulnerability.Service operation interruption (DoS) There is a possibility of being put into a state. RedHat389DirectoryServer (formerly known as FedoraDirectoryServer) is an enterprise-class Linux directory server from RedHat. The server fully supports the LDAPv3 specification and features scalable, multi-master replication. A security vulnerability exists in RedHat389DirectoryServer. An attacker could exploit the vulnerability to cause a denial of service (crash). -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

====================================================================
Red Hat Security Advisory

Synopsis: Moderate: 389-ds-base security and bug fix update Advisory ID: RHSA-2018:2757-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2757 Issue date: 2018-09-25 CVE Names: CVE-2018-10850 CVE-2018-10935 CVE-2018-14624 CVE-2018-14638 ==================================================================== 1. Summary:

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 Moderate. 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.

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

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". (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. As a result, the performance of searches, such as response time and throughput, is improved. (BZ#1615924)
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.

Package List:

Red Hat Enterprise Linux Client Optional (v. 7):