RHSA-2018:0515 - Security Advisory

Topic

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.

Description

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).

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.

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64

Fixes

• BZ - 1525628 - CVE-2017-15135 389-ds-base: Authentication bypass due to lack of size check in slapi_ct_memcmp function in ch_malloc.c
• BZ - 1537314 - CVE-2018-1054 389-ds-base: remote Denial of Service (DoS) via search filters in SetUnicodeStringFromUTF_8 in collate.c

CVEs

• CVE-2017-15135
• CVE-2018-1054

References

• https://access.redhat.com/security/updates/classification/#important