RHEL 6 : dbus (RHSA-2012:1261)

high Nessus Plugin ID 62087

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Synopsis

The remote Red Hat host is missing a security update for dbus.

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2012:1261 advisory.

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

It was discovered that the D-Bus library honored environment settings even when running with elevated privileges. A local attacker could possibly use this flaw to escalate their privileges, by setting specific environment variables before running a setuid or setgid application linked against the D-Bus library (libdbus). (CVE-2012-3524)

Note: With this update, libdbus ignores environment variables when used by setuid or setgid applications. The environment is not ignored when an application gains privileges via file system capabilities; however, no application shipped in Red Hat Enterprise Linux 6 gains privileges via file system capabilities.

Red Hat would like to thank Sebastian Krahmer of the SUSE Security Team for reporting this issue.

All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL dbus package based on the guidance in RHSA-2012:1261.

Plugin Details

Severity: High

ID: 62087

File Name: redhat-RHSA-2012-1261.nasl

Version: 1.21

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/14/2012

Updated: 4/15/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 6

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2012-3524

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dbus-devel, p-cpe:/a:redhat:enterprise_linux:dbus-doc, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:dbus-libs, p-cpe:/a:redhat:enterprise_linux:dbus, p-cpe:/a:redhat:enterprise_linux:dbus-x11

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/13/2012

Vulnerability Publication Date: 9/18/2012

Exploitable With

Core Impact

Reference Information

CVE: CVE-2012-3524

BID: 55517

CWE: 426

RHSA: 2012:1261

Detections

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