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Test ID:1.3.6.1.4.1.25623.1.0.871290
Category:Red Hat Local Security Checks
Title:RedHat Update for kdenetwork RHSA-2014:1827-01
Summary:The remote host is missing an update for the 'kdenetwork'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'kdenetwork'
package(s) announced via the referenced advisory.

Vulnerability Insight:
The kdenetwork packages contain networking applications for the K Desktop
Environment (KDE). Krfb Desktop Sharing, which is a part of the kdenetwork
package, is a server application that allows session sharing between users.
Krfb uses the LibVNCServer library.

A NULL pointer dereference flaw was found in the way LibVNCServer handled
certain ClientCutText message. A remote attacker could use this flaw to
crash the VNC server by sending a specially crafted ClientCutText message
from a VNC client. (CVE-2014-6053)

A divide-by-zero flaw was found in the way LibVNCServer handled the scaling
factor when it was set to '0'. A remote attacker could use this flaw to
crash the VNC server using a malicious VNC client. (CVE-2014-6054)

Two stack-based buffer overflow flaws were found in the way LibVNCServer
handled file transfers. A remote attacker could use this flaw to crash the
VNC server using a malicious VNC client. (CVE-2014-6055)

Red Hat would like to thank oCERT for reporting these issues. oCERT
acknowledges Nicolas Ruff as the original reporter.

Note: Prior to this update, the kdenetwork packages used an embedded copy
of the LibVNCServer library. With this update, the kdenetwork packages have
been modified to use the system LibVNCServer packages. Therefore, the
update provided by RHSA-2014:1826 must be installed to fully address the
issues in krfb described above.

All kdenetwork users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. All running
instances of the krfb server must be restarted for this update to take
effect.

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

Solution:
Please Install the Updated Packages.

CVSS Score:
6.5

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2014-6053
Debian Security Information: DSA-3081 (Google Search)
http://www.debian.org/security/2014/dsa-3081
https://security.gentoo.org/glsa/201507-07
http://www.ocert.org/advisories/ocert-2014-007.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
http://seclists.org/oss-sec/2014/q3/639
http://www.openwall.com/lists/oss-security/2014/09/25/11
http://secunia.com/advisories/61506
http://secunia.com/advisories/61682
SuSE Security Announcement: openSUSE-SU-2015:2207 (Google Search)
http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html
http://ubuntu.com/usn/usn-2365-1
https://usn.ubuntu.com/4573-1/
https://usn.ubuntu.com/4587-1/
Common Vulnerability Exposure (CVE) ID: CVE-2014-6054
BugTraq ID: 70094
http://www.securityfocus.com/bid/70094
http://www.ubuntu.com/usn/USN-2365-1
Common Vulnerability Exposure (CVE) ID: CVE-2014-6055
BugTraq ID: 70096
http://www.securityfocus.com/bid/70096
http://lists.fedoraproject.org/pipermail/package-announce/2014-September/139445.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139654.html
RedHat Security Advisories: RHSA-2015:0113
http://rhn.redhat.com/errata/RHSA-2015-0113.html
XForce ISS Database: libvncserver-cve20146055-bo(96187)
https://exchange.xforce.ibmcloud.com/vulnerabilities/96187
CopyrightCopyright (C) 2014 Greenbone Networks GmbH

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