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RedHat: RHSA-2019-2177:01 Moderate: SSSD Security Update Details

red hat
Calendar Grey August 6, 2019
Dist Redhat Esm H88
Debian unveils important kernel security enhancement for Debian 10—maintain system reliability by applying the newest update.
An update for sssd is now available for Red Hat Enterprise Linux 7

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

Summary

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 following packages have been upgraded to a later upstream version: sssd (1.16.4). (BZ#1658994)
Security Fix(es):
* sssd: fallback_homedir returns '/' for empty home directories in passwd file (CVE-2019-3811)
* sssd: improper implementation of GPOs due to too restrictive permissions (CVE-2018-16838)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security update bug fix Red Hat Enterprise Linux sssd

References

https://access.redhat.com/security/cve/CVE-2018-16838 https://access.redhat.com/security/cve/CVE-2019-3811 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: sssd-1.16.4-21.el7.src.rpm
noarch: python-sssdconfig-1.16.4-21.el7.noarch.rpm
x86_64: libipa_hbac-1.16.4-21.el7.i686.rpm libipa_hbac-1.16.4-21.el7.x86_64.rpm libsss_autofs-1.16.4-21.el7.x86_64.rpm libsss_certmap-1.16.4-21.el7.i686.rpm libsss_certmap-1.16.4-21.el7.x86_64.rpm libsss_idmap-1.16.4-21.el7.i686.rpm libsss_idmap-1.16.4-21.el7.x86_64.rpm libsss_nss_idmap-1.16.4-21.el7.i686.rpm libsss_nss_idmap-1.16.4-21.el7.x86_64.rpm libsss_simpleifp-1.16.4-21.el7.i686.rpm libsss_simpleifp-1.16.4-21.el7.x86_64.rpm libsss_sudo-1.16.4-21.el7.x86_64.rpm python-libipa_hbac-1.16.4-21.el7.x86_64.rpm python-sss-1.16.4-21.el7.x86_64.rpm python-sss-murmur-1.16.4-21.el7.x86_64.rpm sssd-1.16.4-21.el7.x86_64.rpm sssd-ad-1.16.4-21.el7.x86_64.rpm sssd-client-1.16.4-21.el7.i686.rpm sssd-client-1.16.4-21.el7.x86_64.rpm sssd-common-1.16.4-21.el7.x86_64.rpm sssd-common-pac-1.16.4-21.el7.x86_64.rpm sssd-dbus-1.16.4-21.el7.x86_64.rpm sssd-debuginfo-1.16.4-21.el7.i686.rpm sssd-debuginfo-1.16.4-21.el7.x86_64.rpm sssd-ipa-1.16.4-21.el7.x86_64.rpm sssd-kcm-1.16.4-21.el7.x86_64.rpm sssd-krb5-1.16.4-21.el7.x86_64.rpm sssd-krb5-common-1.16.4-21.el7.x86_64.rpm sssd-ldap-1.16.4-21.el7.x86_64.rpm sssd-libwbclient-1.16.4-21.el7.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2019:2177-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2177
Issue date: 2019-08-06

Topic

An update for sssd is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update bug fix Red Hat Enterprise Linux sssd

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

720688 - [RFE] return multiple server addresses to the Kerberos locator plugin

1350012 - kinit / sssd kerberos fail over

1402056 - [RFE] Make 2FA prompting configurable

1406678 - sssd service is starting before network service

1614296 - SSSD netgroups do not honor entry_cache_nowait_percentage

1619706 - sssd only sets the SELinux login context if it differs from the default

1631656 - KCM: kinit: Matching credential not found while getting default ccache

1640820 - CVE-2018-16838 sssd: improper implementation of GPOs due to too restrictive permissions

1645461 - Slow ldb search causes blocking during startup which might cause the registration to time out

1653759 - sss_cache shouldn't return ENOENT when no entries match

1656618 - CVE-2019-3811 sssd: fallback_homedir returns '/' for empty home directories in passwd file

1658994 - Rebase SSSD to 1.16.x

1671138 - User is unable to perform sudo as a user on IPA Server, even though `sudo -l` shows permissions to do so

1672527 - sssd_krb5_locator_plugin introduces delay in cifs.upcall krb5 calls

1677355 - NSS responder does no refresh domain list when busy

1677665 - IPA: Deleted user from trusted domain is not removed properly from the cache on IPA clients

1679173 - filter_users option is not applied to sub-domains if SSSD starts offline

1684979 - The HBAC code requires dereference to be enabled and fails otherwise

1685472 - UPN negative cache does not use values from 'filter_users' config option

Read the Full Advisory

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