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Test ID:1.3.6.1.4.1.25623.1.0.704462
Category:Debian Local Security Checks
Title:Debian Security Advisory DSA 4462-1 (dbus - security update)
Summary:The remote host is missing an update for the 'dbus'; package(s) announced via the DSA-4462-1 advisory.
Description:Summary:
The remote host is missing an update for the 'dbus'
package(s) announced via the DSA-4462-1 advisory.

Vulnerability Insight:
Joe Vennix discovered an authentication bypass vulnerability in dbus, an
asynchronous inter-process communication system. The implementation of
the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a
symbolic link attack. A local attacker could take advantage of this flaw
to bypass authentication and connect to a DBusServer with elevated
privileges.

The standard system and session dbus-daemons in their default
configuration are not affected by this vulnerability.

The vulnerability was addressed by upgrading dbus to a new upstream
version 1.10.28 which includes additional fixes.

Affected Software/OS:
'dbus' package(s) on Debian Linux.

Solution:
For the stable distribution (stretch), this problem has been fixed in
version 1.10.28-0+deb9u1.

We recommend that you upgrade your dbus packages.

CVSS Score:
3.6

CVSS Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-12749
CopyrightCopyright (C) 2019 Greenbone Networks GmbH

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