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Red Hat: RHSA-2020-3014-01 Important: Dbus Denial of Service

red hat
Calendar Grey July 21, 2020
Dist Redhat Esm H88
Crucial patch released for Red Hat's dbus to mitigate severe denial of service vulnerability categorized as significant.
An update for dbus is now available for Red Hat Enterprise Linux 8

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.

Summary

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: denial of service via file descriptor leak (CVE-2020-12049)
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.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat critical important security impact dbus

References

https://access.redhat.com/security/cve/CVE-2020-12049 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: dbus-daemon-debuginfo-1.12.8-10.el8_2.aarch64.rpm dbus-debuginfo-1.12.8-10.el8_2.aarch64.rpm dbus-debugsource-1.12.8-10.el8_2.aarch64.rpm dbus-devel-1.12.8-10.el8_2.aarch64.rpm dbus-libs-debuginfo-1.12.8-10.el8_2.aarch64.rpm dbus-tests-debuginfo-1.12.8-10.el8_2.aarch64.rpm dbus-tools-debuginfo-1.12.8-10.el8_2.aarch64.rpm dbus-x11-1.12.8-10.el8_2.aarch64.rpm dbus-x11-debuginfo-1.12.8-10.el8_2.aarch64.rpm
ppc64le: dbus-daemon-debuginfo-1.12.8-10.el8_2.ppc64le.rpm dbus-debuginfo-1.12.8-10.el8_2.ppc64le.rpm dbus-debugsource-1.12.8-10.el8_2.ppc64le.rpm dbus-devel-1.12.8-10.el8_2.ppc64le.rpm dbus-libs-debuginfo-1.12.8-10.el8_2.ppc64le.rpm dbus-tests-debuginfo-1.12.8-10.el8_2.ppc64le.rpm dbus-tools-debuginfo-1.12.8-10.el8_2.ppc64le.rpm dbus-x11-1.12.8-10.el8_2.ppc64le.rpm dbus-x11-debuginfo-1.12.8-10.el8_2.ppc64le.rpm
s390x: dbus-daemon-debuginfo-1.12.8-10.el8_2.s390x.rpm dbus-debuginfo-1.12.8-10.el8_2.s390x.rpm dbus-debugsource-1.12.8-10.el8_2.s390x.rpm dbus-devel-1.12.8-10.el8_2.s390x.rpm dbus-libs-debuginfo-1.12.8-10.el8_2.s390x.rpm dbus-tests-debuginfo-1.12.8-10.el8_2.s390x.rpm dbus-tools-debuginfo-1.12.8-10.el8_2.s390x.rpm dbus-x11-1.12.8-10.el8_2.s390x.rpm dbus-x11-debuginfo-1.12.8-10.el8_2.s390x.rpm
x86_64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3014-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3014
Issue date: 2020-07-21

Topic

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 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 denial of service Red Hat critical important security impact dbus

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

Bugs Fixed

1849041 - CVE-2020-12049 dbus: denial of service via file descriptor leak

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