Low CentOS sssd Security Update

Metadata

medium
6.8
libipa_hbac-1.13.0-40.el7.i686.rpm, libipa_hbac-1.13.0-40.el7.x86_64.rpm, libipa_hbac-devel-1.13.0-40.el7.i686.rpm, libipa_hbac-devel-1.13.0-40.el7.x86_64.rpm, libsss_idmap-1.13.0-40.el7.i686.rpm, libsss_idmap-1.13.0-40.el7.x86_64.rpm, libsss_idmap-devel-1.13.0-40.el7.i686.rpm, libsss_idmap-devel-1.13.0-40.el7.x86_64.rpm, libsss_nss_idmap-1.13.0-40.el7.i686.rpm, libsss_nss_idmap-1.13.0-40.el7.x86_64.rpm, libsss_nss_idmap-devel-1.13.0-40.el7.i686.rpm, libsss_nss_idmap-devel-1.13.0-40.el7.x86_64.rpm, libsss_simpleifp-1.13.0-40.el7.i686.rpm, libsss_simpleifp-1.13.0-40.el7.x86_64.rpm, libsss_simpleifp-devel-1.13.0-40.el7.i686.rpm, libsss_simpleifp-devel-1.13.0-40.el7.x86_64.rpm, python-libipa_hbac-1.13.0-40.el7.x86_64.rpm, python-libsss_nss_idmap-1.13.0-40.el7.x86_64.rpm, python-sss-1.13.0-40.el7.x86_64.rpm, python-sss-murmur-1.13.0-40.el7.x86_64.rpm, python-sssdconfig-1.13.0-40.el7.noarch.rpm, sssd-1.13.0-40.el7.x86_64.rpm, sssd-ad-1.13.0-40.el7.x86_64.rpm, sssd-client-1.13.0-40.el7.i686.rpm, sssd-client-1.13.0-40.el7.x86_64.rpm, sssd-common-1.13.0-40.el7.i686.rpm, sssd-common-1.13.0-40.el7.x86_64.rpm, sssd-common-pac-1.13.0-40.el7.x86_64.rpm, sssd-dbus-1.13.0-40.el7.x86_64.rpm, sssd-ipa-1.13.0-40.el7.x86_64.rpm, sssd-krb5-1.13.0-40.el7.x86_64.rpm, sssd-krb5-common-1.13.0-40.el7.i686.rpm, sssd-krb5-common-1.13.0-40.el7.x86_64.rpm, sssd-ldap-1.13.0-40.el7.x86_64.rpm, sssd-libwbclient-1.13.0-40.el7.x86_64.rpm, sssd-libwbclient-devel-1.13.0-40.el7.i686.rpm, sssd-libwbclient-devel-1.13.0-40.el7.x86_64.rpm, sssd-proxy-1.13.0-40.el7.x86_64.rpm, sssd-tools-1.13.0-40.el7.x86_64.rpm
CVE-2015-5292
rhn.redhat.com, lists.centos.org
2015-11-30
2017-07-27 19:10
ALAS-2016-635
Low CentOS sssd Security Update
CVE-2015-5292 sssd
CVE-2015-5292
2017-04-01 19:09
2017-01-05 20:13

Description


Updated sssd packages that fix one security issue, multiple bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security 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.

The System Security Services Daemon (SSSD) service provides a set of
daemons to manage access to remote directories and authentication
mechanisms.

It was found that SSSD's Privilege Attribute Certificate (PAC) responder
plug-in would leak a small amount of memory on each authentication request.
A remote attacker could potentially use this flaw to exhaust all available
memory on the system by making repeated requests to a Kerberized daemon
application configured to authenticate using the PAC responder plug-in.
(CVE-2015-5292)

The sssd packages have been upgraded to upstream version 1.13.0, which
provides a number of bug fixes and enhancements over the previous version.
(BZ#1205554)

Several enhancements are described in the Red Hat Enterprise Linux 7.2
Release Notes, linked to in the References section:

* SSSD smart card support (BZ#854396)
* Cache authentication in SSSD (BZ#910187)
* SSSD supports overriding automatically discovered AD site (BZ#1163806)
* SSSD can now deny SSH access to locked accounts (BZ#1175760)
* SSSD enables UID and GID mapping on individual clients (BZ#1183747)
* Background refresh of cached entries (BZ#1199533)
* Multi-step prompting for one-time and long-term passwords (BZ#1200873)
* Caching for initgroups operations (BZ#1206575)

Bugs fixed:

* When the SELinux user content on an IdM server was set to an empty
string, the SSSD SELinux evaluation utility returned an error. (BZ#1192314)

* If the ldap_child process failed to initialize credentials and exited
with an error multiple times, operations that create files in some cases
started failing due to an insufficient amount of i-nodes. (BZ#1198477)

* The SRV queries used a hard coded TTL timeout, and environments that
wanted the SRV queries to be valid for a certain time only were blocked.
Now, SSSD parses the TTL value out of the DNS packet. (BZ#1199541)

* Previously, initgroups operation took an excessive amount of time. Now,
logins and ID processing are faster for setups with AD back end and
disabled ID mapping. (BZ#1201840)

* When an IdM client with Red Hat Enterprise Linux 7.1 or later was
connecting to a server with Red Hat Enterprise Linux 7.0 or earlier,
authentication with an AD trusted domain caused the sssd_be process to
terminate unexpectedly. (BZ#1202170)

* If replication conflict entries appeared during HBAC processing, the user
was denied access. Now, the replication conflict entries are skipped and
users are permitted access. (BZ#1202245)

* The array of SIDs no longer contains an uninitialized value and SSSD no
longer crashes. (BZ#1204203)

* SSSD supports GPOs from different domain controllers and no longer
crashes when processing GPOs from different domain controllers.
(BZ#1205852)

* SSSD could not refresh sudo rules that contained groups with special
characters, such as parentheses, in their name. (BZ#1208507)

* The IPA names are not qualified on the client side if the server already
qualified them, and IdM group members resolve even if default_domain_suffix
is used on the server side. (BZ#1211830)

* The internal cache cleanup task has been disabled by default to improve
performance of the sssd_be process. (BZ#1212489)

* Now, default_domain_suffix is not considered anymore for autofs maps.
(BZ#1216285)

* The user can set subdomain_inherit=ignore_group-members to disable
fetching group members for trusted domains. (BZ#1217350)

* The group resolution failed with an error message: "Error: 14 (Bad
address)". The binary GUID handling has been fixed. (BZ#1226119)

Enhancements added:

* The description of default_domain_suffix has been improved in the manual
pages. (BZ#1185536)

* With the new "%0" template option, users on SSSD IdM clients can now use
home directories set on AD. (BZ#1187103)

All sssd users are advised to upgrade to these updated packages, which
correct these issues and add these enhancements.
Please see https://www.redhat.com/footer/terms-of-use.html

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Affected package information

Release Package Patched in
7 libipa_hbac libipa_hbac-1.13.0-40.el7.i686.rpm
libipa_hbac libipa_hbac-1.13.0-40.el7.x86_64.rpm
libipa_hbac-devel libipa_hbac-devel-1.13.0-40.el7.i686.rpm
libipa_hbac-devel libipa_hbac-devel-1.13.0-40.el7.x86_64.rpm
libsss_idmap libsss_idmap-1.13.0-40.el7.i686.rpm
libsss_idmap libsss_idmap-1.13.0-40.el7.x86_64.rpm
libsss_idmap-devel libsss_idmap-devel-1.13.0-40.el7.i686.rpm
libsss_idmap-devel libsss_idmap-devel-1.13.0-40.el7.x86_64.rpm
libsss_nss_idmap libsss_nss_idmap-1.13.0-40.el7.i686.rpm
libsss_nss_idmap libsss_nss_idmap-1.13.0-40.el7.x86_64.rpm
libsss_nss_idmap-devel libsss_nss_idmap-devel-1.13.0-40.el7.i686.rpm
libsss_nss_idmap-devel libsss_nss_idmap-devel-1.13.0-40.el7.x86_64.rpm
libsss_simpleifp libsss_simpleifp-1.13.0-40.el7.i686.rpm
libsss_simpleifp libsss_simpleifp-1.13.0-40.el7.x86_64.rpm
libsss_simpleifp-devel libsss_simpleifp-devel-1.13.0-40.el7.i686.rpm
libsss_simpleifp-devel libsss_simpleifp-devel-1.13.0-40.el7.x86_64.rpm
python-libipa_hbac python-libipa_hbac-1.13.0-40.el7.x86_64.rpm
python-libsss_nss_idmap python-libsss_nss_idmap-1.13.0-40.el7.x86_64.rpm
python-sss python-sss-1.13.0-40.el7.x86_64.rpm
python-sssdconfig python-sssdconfig-1.13.0-40.el7.noarch.rpm
python-sss-murmur python-sss-murmur-1.13.0-40.el7.x86_64.rpm
sssd sssd-1.13.0-40.el7.x86_64.rpm
sssd-ad sssd-ad-1.13.0-40.el7.x86_64.rpm
sssd-client sssd-client-1.13.0-40.el7.i686.rpm
sssd-client sssd-client-1.13.0-40.el7.x86_64.rpm
sssd-common sssd-common-1.13.0-40.el7.i686.rpm
sssd-common sssd-common-1.13.0-40.el7.x86_64.rpm
sssd-common-pac sssd-common-pac-1.13.0-40.el7.x86_64.rpm
sssd-dbus sssd-dbus-1.13.0-40.el7.x86_64.rpm
sssd-ipa sssd-ipa-1.13.0-40.el7.x86_64.rpm
sssd-krb5 sssd-krb5-1.13.0-40.el7.x86_64.rpm
sssd-krb5-common sssd-krb5-common-1.13.0-40.el7.i686.rpm
sssd-krb5-common sssd-krb5-common-1.13.0-40.el7.x86_64.rpm
sssd-ldap sssd-ldap-1.13.0-40.el7.x86_64.rpm
sssd-libwbclient sssd-libwbclient-1.13.0-40.el7.x86_64.rpm
sssd-libwbclient-devel sssd-libwbclient-devel-1.13.0-40.el7.i686.rpm
sssd-libwbclient-devel sssd-libwbclient-devel-1.13.0-40.el7.x86_64.rpm
sssd-proxy sssd-proxy-1.13.0-40.el7.x86_64.rpm
sssd-tools sssd-tools-1.13.0-40.el7.x86_64.rpm