Moderate: sssd and ding-libs security and bug fix update

Related Vulnerabilities: CVE-2017-12173   CVE-2017-12173   CVE-2017-12173  

Synopsis

Moderate: sssd and ding-libs security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for sssd and ding-libs is now available for Red Hat Enterprise Linux 6.

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.

Description

The System Security Services Daemon (SSSD) service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch (NSS) and the Pluggable Authentication Modules (PAM) interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources.

The ding-libs packages contain a set of libraries used by the System Security Services Daemon (SSSD) as well as other projects, and provide functions to manipulate file system path names (libpath_utils), a hash table to manage storage and access time properties (libdhash), a data type to collect data in a hierarchical structure (libcollection), a dynamically growing, reference-counted array (libref_array), and a library to process configuration files in initialization format (INI) into a library collection data structure (libini_config).

Security Fix(es):

  • sssd: unsanitized input when searching in local cache database (CVE-2017-12173)

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.

This issue was discovered by Sumit Bose (Red Hat).

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

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

Affected Products

  • Red Hat Enterprise Linux Server 6 x86_64
  • Red Hat Enterprise Linux Server 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 IBM z Systems 6 s390x
  • Red Hat Enterprise Linux for Power, big endian 6 ppc64
  • Red Hat Enterprise Linux for Scientific Computing 6 x86_64

Fixes

  • BZ - 1401546 - Please back-port fast failover from sssd 1.14 on RHEL 7 into sssd 1.13 on RHEL 6
  • BZ - 1438360 - The originalMemberOf attribute disappears from the cache, causing intermittent HBAC issues
  • BZ - 1442703 - Smart Cards: Certificate in the ID View
  • BZ - 1487040 - sssd does not evaluate AD UPN suffixes which results in failed user logins
  • BZ - 1498173 - CVE-2017-12173 sssd: unsanitized input when searching in local cache database

CVEs

References