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Red Hat Enterprise Linux: RHSA-2020-3298-01 Important: Dbus DoS Issue

red hat
Calendar Grey August 4, 2020
Dist Redhat Esm H88
A critical patch for dbus in Red Hat Enterprise Linux has been released, focusing on vulnerabilities that could lead to service disruptions.
An update for dbus is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

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 important 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 EUS (v. 8.1):
aarch64: dbus-daemon-debuginfo-1.12.8-10.el8_1.aarch64.rpm dbus-debuginfo-1.12.8-10.el8_1.aarch64.rpm dbus-debugsource-1.12.8-10.el8_1.aarch64.rpm dbus-devel-1.12.8-10.el8_1.aarch64.rpm dbus-libs-debuginfo-1.12.8-10.el8_1.aarch64.rpm dbus-tests-debuginfo-1.12.8-10.el8_1.aarch64.rpm dbus-tools-debuginfo-1.12.8-10.el8_1.aarch64.rpm dbus-x11-1.12.8-10.el8_1.aarch64.rpm dbus-x11-debuginfo-1.12.8-10.el8_1.aarch64.rpm
ppc64le: dbus-daemon-debuginfo-1.12.8-10.el8_1.ppc64le.rpm dbus-debuginfo-1.12.8-10.el8_1.ppc64le.rpm dbus-debugsource-1.12.8-10.el8_1.ppc64le.rpm dbus-devel-1.12.8-10.el8_1.ppc64le.rpm dbus-libs-debuginfo-1.12.8-10.el8_1.ppc64le.rpm dbus-tests-debuginfo-1.12.8-10.el8_1.ppc64le.rpm dbus-tools-debuginfo-1.12.8-10.el8_1.ppc64le.rpm dbus-x11-1.12.8-10.el8_1.ppc64le.rpm dbus-x11-debuginfo-1.12.8-10.el8_1.ppc64le.rpm
s390x: dbus-daemon-debuginfo-1.12.8-10.el8_1.s390x.rpm dbus-debuginfo-1.12.8-10.el8_1.s390x.rpm dbus-debugsource-1.12.8-10.el8_1.s390x.rpm dbus-devel-1.12.8-10.el8_1.s390x.rpm dbus-libs-debuginfo-1.12.8-10.el8_1.s390x.rpm dbus-tests-debuginfo-1.12.8-10.el8_1.s390x.rpm dbus-tools-debuginfo-1.12.8-10.el8_1.s390x.rpm dbus-x11-1.12.8-10.el8_1.s390x.rpm dbus-x11-debuginfo-1.12.8-10.el8_1.s390x.rpm
x86_64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3298-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3298
Issue date: 2020-08-04

Topic

An update for dbus is now available for Red Hat Enterprise Linux 8.1Extended Update Support.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 important dbus

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

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

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