The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2258 advisory.

    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.

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

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

Detections

Analytics

RHEL 7 : gtk-vnc (RHSA-2017:2258)

critical Nessus Plugin ID 102153

Version 3.13