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Red Hat: RHSA-2021-3336 Important: SSSD Command Injection Risk

red hat
Calendar Grey August 31, 2021
Dist Redhat Esm H88
Red Hat has issued a significant update for sssd that tackles command injection vulnerabilities and several other severe issues for RHEL 7.
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.
Security Fix(es):
* sssd: shell command injection in sssctl (CVE-2021-3621)
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.
Bug Fix(es):
* Memory leak in the simple access provider (BZ#1964415)
* id lookup is failing intermittently (BZ#1968330)
* SSSD is NOT able to contact the Global Catalog when local site is down (BZ#1973796)
* Missing search index for `originalADgidNumber` (BZ#1988463)

Topics%20covered

Topics Covered

security advisory Red Hat critical bug fix important command injection SSSD

References

https://access.redhat.com/security/cve/CVE-2021-3621 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: sssd-1.16.5-10.el7_9.10.src.rpm
noarch: python-sssdconfig-1.16.5-10.el7_9.10.noarch.rpm
x86_64: libipa_hbac-1.16.5-10.el7_9.10.i686.rpm libipa_hbac-1.16.5-10.el7_9.10.x86_64.rpm libsss_autofs-1.16.5-10.el7_9.10.x86_64.rpm libsss_certmap-1.16.5-10.el7_9.10.i686.rpm libsss_certmap-1.16.5-10.el7_9.10.x86_64.rpm libsss_idmap-1.16.5-10.el7_9.10.i686.rpm libsss_idmap-1.16.5-10.el7_9.10.x86_64.rpm libsss_nss_idmap-1.16.5-10.el7_9.10.i686.rpm libsss_nss_idmap-1.16.5-10.el7_9.10.x86_64.rpm libsss_simpleifp-1.16.5-10.el7_9.10.i686.rpm libsss_simpleifp-1.16.5-10.el7_9.10.x86_64.rpm libsss_sudo-1.16.5-10.el7_9.10.x86_64.rpm python-libipa_hbac-1.16.5-10.el7_9.10.x86_64.rpm python-sss-1.16.5-10.el7_9.10.x86_64.rpm python-sss-murmur-1.16.5-10.el7_9.10.x86_64.rpm sssd-1.16.5-10.el7_9.10.x86_64.rpm sssd-ad-1.16.5-10.el7_9.10.x86_64.rpm sssd-client-1.16.5-10.el7_9.10.i686.rpm sssd-client-1.16.5-10.el7_9.10.x86_64.rpm sssd-common-1.16.5-10.el7_9.10.x86_64.rpm sssd-common-pac-1.16.5-10.el7_9.10.x86_64.rpm sssd-dbus-1.16.5-10.el7_9.10.x86_64.rpm sssd-debuginfo-1.16.5-10.el7_9.10.i686.rpm sssd-debuginfo-1.16.5-10.el7_9.10.x86_64.rpm sssd-ipa-1.16.5-10.el7_9.10.x86_64.rpm sssd-kcm-1.16.5-10.el7_9.10.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3336-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3336
Issue date: 2021-08-31

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 Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat critical bug fix important command injection 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

1964415 - Memory leak in the simple access provider

1968330 - id lookup is failing intermittently

1975142 - CVE-2021-3621 sssd: shell command injection in sssctl

1988463 - Missing search index for `originalADgidNumber` [rhel-7.9.z]

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