Issued:
2011-07-21
Updated:
2011-07-21

RHSA-2011:0975 - Low: sssd security, bug fix, and enhancement update

Synopsis

Low: sssd security, bug fix, and enhancement update

Type/Severity

Security Advisory Low

Topic

Updated sssd packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

The System Security Services Daemon (SSSD) provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back-end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects such as FreeIPA.

A flaw was found in the SSSD PAM responder that could allow a local attacker to force SSSD to enter an infinite loop via a carefully-crafted packet. With SSSD unresponsive, legitimate users could be denied the ability to log in to the system. (CVE-2010-4341)

Red Hat would like to thank Sebastian Krahmer for reporting this issue.

These updated sssd packages include a number of bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Refer to the Red Hat Enterprise Linux 5.7 Technical Notes for information about these changes:

https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.7_Technical_Notes/sssd.html#RHSA-2011-0975

All sssd users are advised to upgrade to these updated sssd packages, which upgrade SSSD to upstream version 1.5.1 to correct this issue, and fix the bugs and add the enhancements noted in the Technical Notes.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • sssd-client-1.5.1-37.el5.i386.rpm
  • sssd-tools-1.5.1-37.el5.i386.rpm
  • sssd-client-1.5.1-37.el5.ppc.rpm
  • sssd-client-1.5.1-37.el5.s390x.rpm
  • sssd-1.5.1-37.el5.src.rpm
  • sssd-1.5.1-37.el5.s390x.rpm
  • sssd-tools-1.5.1-37.el5.x86_64.rpm
  • sssd-1.5.1-37.el5.ia64.rpm
  • sssd-client-1.5.1-37.el5.s390.rpm
  • sssd-1.5.1-37.el5.i386.rpm
  • sssd-client-1.5.1-37.el5.x86_64.rpm
  • sssd-1.5.1-37.el5.x86_64.rpm
  • sssd-tools-1.5.1-37.el5.ppc.rpm
  • sssd-client-1.5.1-37.el5.ppc64.rpm
  • sssd-1.5.1-37.el5.ppc.rpm
  • sssd-tools-1.5.1-37.el5.s390x.rpm
  • sssd-client-1.5.1-37.el5.ia64.rpm
  • sssd-tools-1.5.1-37.el5.ia64.rpm

Fixes

CVEs

References

Additional information