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Test ID:1.3.6.1.4.1.25623.1.0.871869
Category:Red Hat Local Security Checks
Title:RedHat Update for gtk-vnc RHSA-2017:2258-01
Summary:The remote host is missing an update for the 'gtk-vnc'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'gtk-vnc'
package(s) announced via the referenced advisory.

Vulnerability Insight:
The gtk-vnc packages provide a VNC viewer
widget for GTK. The gtk-vnc widget is built by using co-routines, which allows
the widget to be completely asynchronous while remaining single-threaded. The
following packages have been upgraded to a later upstream version: gtk-vnc
(0.7.0). (BZ#1416783) Security Fix(es): * It was found that gtk-vnc lacked
proper bounds checking while processing messages using RRE, hextile, or copyrect
encodings. A remote malicious VNC server could use this flaw to crash VNC
viewers which are based on the gtk-vnc library. (CVE-2017-5884) * An integer
overflow flaw was found in gtk-vnc. A remote malicious VNC server could use this
flaw to crash VNC viewers which are based on the gtk-vnc library.
(CVE-2017-5885) Additional Changes: For detailed information on changes in this
release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the
References section.

Affected Software/OS:
gtk-vnc on Red Hat Enterprise Linux Server (v. 7)

Solution:
Please Install the Updated Packages.

CVSS Score:
7.5

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-5884
BugTraq ID: 96016
http://www.securityfocus.com/bid/96016
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LGPQ5MQR6SN4DYTEFACHP2PP5RR26KYK/
http://www.openwall.com/lists/oss-security/2017/02/03/5
http://www.openwall.com/lists/oss-security/2017/02/05/5
RedHat Security Advisories: RHSA-2017:2258
https://access.redhat.com/errata/RHSA-2017:2258
Common Vulnerability Exposure (CVE) ID: CVE-2017-5885
CopyrightCopyright (C) 2017 Greenbone Networks GmbH

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