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RHEL 9 RHSA-2022-6608-01 Moderate: dbus-broker Buffer Over-Read

red hat
Calendar Grey September 20, 2022
Dist Redhat Esm H88
A recent patch for dbus-broker on RHEL 9 resolves vulnerabilities linked to buffer overflow and improper XML handling, both categorized as moderate severity risks.
An update for dbus-broker is now available for Red Hat Enterprise Linux 9

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

dbus-broker is an implementation of a message bus as defined by the D-Bus specification. Its aim is to provide high performance and reliability, while keeping compatibility to the D-Bus reference implementation. It is exclusively written for Linux systems, and makes use of many modern features provided by recent Linux kernel releases.
Security Fix(es):
* dbus-broker: a stack buffer over-read if a malicious Exec line is supplied (CVE-2022-31212)
* dbus-broker: null pointer reference when supplying a malformed XML config file (CVE-2022-31213)
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 moderate security update Red Hat Enterprise Linux XML processing buffer over-read dbus-broker

References

https://access.redhat.com/security/cve/CVE-2022-31212 https://access.redhat.com/security/cve/CVE-2022-31213 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux BaseOS (v. 9):
Source: dbus-broker-28-5.1.el9_0.src.rpm
aarch64: dbus-broker-28-5.1.el9_0.aarch64.rpm dbus-broker-debuginfo-28-5.1.el9_0.aarch64.rpm dbus-broker-debugsource-28-5.1.el9_0.aarch64.rpm
ppc64le: dbus-broker-28-5.1.el9_0.ppc64le.rpm dbus-broker-debuginfo-28-5.1.el9_0.ppc64le.rpm dbus-broker-debugsource-28-5.1.el9_0.ppc64le.rpm
s390x: dbus-broker-28-5.1.el9_0.s390x.rpm dbus-broker-debuginfo-28-5.1.el9_0.s390x.rpm dbus-broker-debugsource-28-5.1.el9_0.s390x.rpm
x86_64: dbus-broker-28-5.1.el9_0.x86_64.rpm dbus-broker-debuginfo-28-5.1.el9_0.x86_64.rpm dbus-broker-debugsource-28-5.1.el9_0.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


Advisory ID: RHSA-2022:6608-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6608
Issue date: 2022-09-20

Topic

An update for dbus-broker is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux XML processing buffer over-read dbus-broker

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2094718 - CVE-2022-31212 dbus-broker: a stack buffer over-read if a malicious Exec line is supplied

2094722 - CVE-2022-31213 dbus-broker: null pointer reference when supplying a malformed XML config file

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