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Red Hat Security Advisory 2019-3707-01

Red Hat Security Advisory 2019-3707-01
Posted Nov 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3707-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | a8d59b88d39a7ebe5b3678a8fbaf5d02

Red Hat Security Advisory 2019-3707-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: dbus security update
Advisory ID: RHSA-2019:3707-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3707
Issue date: 2019-11-05
CVE Names: CVE-2019-12749
=====================================================================

1. Summary:

An update for dbus is now available for Red Hat Enterprise Linux 8.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

D-Bus is a system for sending messages between applications. It is used
both for the system-wide message bus service, and as a
per-user-login-session messaging facility.

Security Fix(es):

* dbus: DBusServer DBUS_COOKIE_SHA1 authentication bypass (CVE-2019-12749)

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 8.1 Release Notes linked from the References section.

4. 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

For the update to take effect, all running instances of dbus-daemon and all
running applications using the libdbus library must be restarted, or the
system rebooted.

5. Bugs fixed (https://bugzilla.redhat.com/):

1719344 - CVE-2019-12749 dbus: DBusServer DBUS_COOKIE_SHA1 authentication bypass

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

aarch64:
dbus-daemon-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-debugsource-1.12.8-9.el8.aarch64.rpm
dbus-devel-1.12.8-9.el8.aarch64.rpm
dbus-libs-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-tests-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-tools-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-x11-1.12.8-9.el8.aarch64.rpm
dbus-x11-debuginfo-1.12.8-9.el8.aarch64.rpm

ppc64le:
dbus-daemon-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-debugsource-1.12.8-9.el8.ppc64le.rpm
dbus-devel-1.12.8-9.el8.ppc64le.rpm
dbus-libs-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-tests-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-tools-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-x11-1.12.8-9.el8.ppc64le.rpm
dbus-x11-debuginfo-1.12.8-9.el8.ppc64le.rpm

s390x:
dbus-daemon-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-debugsource-1.12.8-9.el8.s390x.rpm
dbus-devel-1.12.8-9.el8.s390x.rpm
dbus-libs-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-tests-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-tools-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-x11-1.12.8-9.el8.s390x.rpm
dbus-x11-debuginfo-1.12.8-9.el8.s390x.rpm

x86_64:
dbus-daemon-debuginfo-1.12.8-9.el8.i686.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-debuginfo-1.12.8-9.el8.i686.rpm
dbus-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-debugsource-1.12.8-9.el8.i686.rpm
dbus-debugsource-1.12.8-9.el8.x86_64.rpm
dbus-devel-1.12.8-9.el8.i686.rpm
dbus-devel-1.12.8-9.el8.x86_64.rpm
dbus-libs-debuginfo-1.12.8-9.el8.i686.rpm
dbus-libs-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-tests-debuginfo-1.12.8-9.el8.i686.rpm
dbus-tests-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-tools-debuginfo-1.12.8-9.el8.i686.rpm
dbus-tools-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-x11-1.12.8-9.el8.x86_64.rpm
dbus-x11-debuginfo-1.12.8-9.el8.i686.rpm
dbus-x11-debuginfo-1.12.8-9.el8.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
dbus-1.12.8-9.el8.src.rpm

aarch64:
dbus-1.12.8-9.el8.aarch64.rpm
dbus-daemon-1.12.8-9.el8.aarch64.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-debugsource-1.12.8-9.el8.aarch64.rpm
dbus-libs-1.12.8-9.el8.aarch64.rpm
dbus-libs-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-tests-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-tools-1.12.8-9.el8.aarch64.rpm
dbus-tools-debuginfo-1.12.8-9.el8.aarch64.rpm
dbus-x11-debuginfo-1.12.8-9.el8.aarch64.rpm

noarch:
dbus-common-1.12.8-9.el8.noarch.rpm

ppc64le:
dbus-1.12.8-9.el8.ppc64le.rpm
dbus-daemon-1.12.8-9.el8.ppc64le.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-debugsource-1.12.8-9.el8.ppc64le.rpm
dbus-libs-1.12.8-9.el8.ppc64le.rpm
dbus-libs-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-tests-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-tools-1.12.8-9.el8.ppc64le.rpm
dbus-tools-debuginfo-1.12.8-9.el8.ppc64le.rpm
dbus-x11-debuginfo-1.12.8-9.el8.ppc64le.rpm

s390x:
dbus-1.12.8-9.el8.s390x.rpm
dbus-daemon-1.12.8-9.el8.s390x.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-debugsource-1.12.8-9.el8.s390x.rpm
dbus-libs-1.12.8-9.el8.s390x.rpm
dbus-libs-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-tests-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-tools-1.12.8-9.el8.s390x.rpm
dbus-tools-debuginfo-1.12.8-9.el8.s390x.rpm
dbus-x11-debuginfo-1.12.8-9.el8.s390x.rpm

x86_64:
dbus-1.12.8-9.el8.x86_64.rpm
dbus-daemon-1.12.8-9.el8.x86_64.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.i686.rpm
dbus-daemon-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-debuginfo-1.12.8-9.el8.i686.rpm
dbus-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-debugsource-1.12.8-9.el8.i686.rpm
dbus-debugsource-1.12.8-9.el8.x86_64.rpm
dbus-libs-1.12.8-9.el8.i686.rpm
dbus-libs-1.12.8-9.el8.x86_64.rpm
dbus-libs-debuginfo-1.12.8-9.el8.i686.rpm
dbus-libs-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-tests-debuginfo-1.12.8-9.el8.i686.rpm
dbus-tests-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-tools-1.12.8-9.el8.x86_64.rpm
dbus-tools-debuginfo-1.12.8-9.el8.i686.rpm
dbus-tools-debuginfo-1.12.8-9.el8.x86_64.rpm
dbus-x11-debuginfo-1.12.8-9.el8.i686.rpm
dbus-x11-debuginfo-1.12.8-9.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-12749
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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