CentOS ProjectCESA-2017:2258gtk, gvnc, gvncpulse security update
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
77.3%
CentOS Errata and Security Advisory CESA-2017:2258
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.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2017-August/030476.html
Affected packages:
gtk-vnc
gtk-vnc-devel
gtk-vnc-python
gtk-vnc2
gtk-vnc2-devel
gvnc
gvnc-devel
gvnc-tools
gvncpulse
gvncpulse-devel
Upstream details at:
https://access.redhat.com/errata/RHSA-2017:2258
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| CentOS | 7 | i686 | gtk-vnc | < 0.7.0-2.el7 | gtk-vnc-0.7.0-2.el7.i686.rpm |
| CentOS | 7 | x86_64 | gtk-vnc | < 0.7.0-2.el7 | gtk-vnc-0.7.0-2.el7.x86_64.rpm |
| CentOS | 7 | i686 | gtk-vnc2 | < 0.7.0-2.el7 | gtk-vnc2-0.7.0-2.el7.i686.rpm |
| CentOS | 7 | x86_64 | gtk-vnc2 | < 0.7.0-2.el7 | gtk-vnc2-0.7.0-2.el7.x86_64.rpm |
| CentOS | 7 | i686 | gtk-vnc2-devel | < 0.7.0-2.el7 | gtk-vnc2-devel-0.7.0-2.el7.i686.rpm |
| CentOS | 7 | x86_64 | gtk-vnc2-devel | < 0.7.0-2.el7 | gtk-vnc2-devel-0.7.0-2.el7.x86_64.rpm |
| CentOS | 7 | i686 | gtk-vnc-devel | < 0.7.0-2.el7 | gtk-vnc-devel-0.7.0-2.el7.i686.rpm |
| CentOS | 7 | x86_64 | gtk-vnc-devel | < 0.7.0-2.el7 | gtk-vnc-devel-0.7.0-2.el7.x86_64.rpm |
| CentOS | 7 | x86_64 | gtk-vnc-python | < 0.7.0-2.el7 | gtk-vnc-python-0.7.0-2.el7.x86_64.rpm |
| CentOS | 7 | i686 | gvnc | < 0.7.0-2.el7 | gvnc-0.7.0-2.el7.i686.rpm |
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
77.3%