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Red Hat Security Advisory 2019-2868-01

Red Hat Security Advisory 2019-2868-01
Posted Sep 23, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2868-01 - 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
SHA-256 | dea2e8d4ae59d3978ba5d2188a666212eddea2eb7a10021a8e4a5828e0e27c63

Red Hat Security Advisory 2019-2868-01

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====================================================================
Red Hat Security Advisory

Synopsis: Important: dbus security update
Advisory ID: RHSA-2019:2868-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2868
Issue date: 2019-09-23
CVE Names: CVE-2019-12749
====================================================================
1. Summary:

An update for dbus is now available for Red Hat Enterprise Linux 6.6
Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 Server AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - noarch

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.

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 Server AUS (v. 6.6):

Source:
dbus-1.2.24-9.el6_6.src.rpm

x86_64:
dbus-1.2.24-9.el6_6.x86_64.rpm
dbus-debuginfo-1.2.24-9.el6_6.i686.rpm
dbus-debuginfo-1.2.24-9.el6_6.x86_64.rpm
dbus-devel-1.2.24-9.el6_6.i686.rpm
dbus-devel-1.2.24-9.el6_6.x86_64.rpm
dbus-libs-1.2.24-9.el6_6.i686.rpm
dbus-libs-1.2.24-9.el6_6.x86_64.rpm
dbus-x11-1.2.24-9.el6_6.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.6):

noarch:
dbus-doc-1.2.24-9.el6_6.noarch.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/#important

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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