drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in GTK-VNC
Name: |
Zwei Probleme in GTK-VNC |
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ID: |
RHSA-2017:2258-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 1. August 2017, 23:12 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2017-5885
https://access.redhat.com/security/cve/CVE-2017-5884 |
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Applikationen: |
GTK-VNC |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Moderate: gtk-vnc security, bug fix, and enhancement update Advisory ID: RHSA-2017:2258-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2017:2258 Issue date: 2017-08-01 CVE Names: CVE-2017-5884 CVE-2017-5885 =====================================================================
1. Summary:
An update for gtk-vnc is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
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.
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
921008 - Guest will keep typing '~' after press F9 and F10 in same time. 921330 - Remote-viewer shows no error if connect to a spice port through vnc protocol 1126825 - Unnecessary warning messages show when shutdown vnc guest during virt-viewer $guest --wait 1416783 - Rebase to 0.7.0 release to fix numerous bugs 1418944 - CVE-2017-5884 gtk-vnc: Improper check of framebuffer boundaries when processing a tile 1418952 - CVE-2017-5885 gtk-vnc: Integer overflow when processing SetColorMapEntries 1441120 - segment fault when connecting a host with no VNC server listening
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: gtk-vnc-0.7.0-2.el7.src.rpm
x86_64: gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc2-0.7.0-2.el7.i686.rpm gtk-vnc2-0.7.0-2.el7.x86_64.rpm gvnc-0.7.0-2.el7.i686.rpm gvnc-0.7.0-2.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: gtk-vnc-0.7.0-2.el7.i686.rpm gtk-vnc-0.7.0-2.el7.x86_64.rpm gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc-devel-0.7.0-2.el7.i686.rpm gtk-vnc-devel-0.7.0-2.el7.x86_64.rpm gtk-vnc-python-0.7.0-2.el7.x86_64.rpm gtk-vnc2-devel-0.7.0-2.el7.i686.rpm gtk-vnc2-devel-0.7.0-2.el7.x86_64.rpm gvnc-devel-0.7.0-2.el7.i686.rpm gvnc-devel-0.7.0-2.el7.x86_64.rpm gvnc-tools-0.7.0-2.el7.x86_64.rpm gvncpulse-0.7.0-2.el7.i686.rpm gvncpulse-0.7.0-2.el7.x86_64.rpm gvncpulse-devel-0.7.0-2.el7.i686.rpm gvncpulse-devel-0.7.0-2.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: gtk-vnc-0.7.0-2.el7.src.rpm
aarch64: gtk-vnc-debuginfo-0.7.0-2.el7.aarch64.rpm gtk-vnc2-0.7.0-2.el7.aarch64.rpm gvnc-0.7.0-2.el7.aarch64.rpm
ppc64: gtk-vnc-debuginfo-0.7.0-2.el7.ppc.rpm gtk-vnc-debuginfo-0.7.0-2.el7.ppc64.rpm gtk-vnc2-0.7.0-2.el7.ppc.rpm gtk-vnc2-0.7.0-2.el7.ppc64.rpm gvnc-0.7.0-2.el7.ppc.rpm gvnc-0.7.0-2.el7.ppc64.rpm
ppc64le: gtk-vnc-debuginfo-0.7.0-2.el7.ppc64le.rpm gtk-vnc2-0.7.0-2.el7.ppc64le.rpm gvnc-0.7.0-2.el7.ppc64le.rpm
s390x: gtk-vnc-debuginfo-0.7.0-2.el7.s390.rpm gtk-vnc-debuginfo-0.7.0-2.el7.s390x.rpm gtk-vnc2-0.7.0-2.el7.s390.rpm gtk-vnc2-0.7.0-2.el7.s390x.rpm gvnc-0.7.0-2.el7.s390.rpm gvnc-0.7.0-2.el7.s390x.rpm
x86_64: gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc2-0.7.0-2.el7.i686.rpm gtk-vnc2-0.7.0-2.el7.x86_64.rpm gvnc-0.7.0-2.el7.i686.rpm gvnc-0.7.0-2.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64: gtk-vnc-0.7.0-2.el7.aarch64.rpm gtk-vnc-debuginfo-0.7.0-2.el7.aarch64.rpm gtk-vnc-devel-0.7.0-2.el7.aarch64.rpm gtk-vnc-python-0.7.0-2.el7.aarch64.rpm gtk-vnc2-devel-0.7.0-2.el7.aarch64.rpm gvnc-devel-0.7.0-2.el7.aarch64.rpm gvnc-tools-0.7.0-2.el7.aarch64.rpm gvncpulse-0.7.0-2.el7.aarch64.rpm gvncpulse-devel-0.7.0-2.el7.aarch64.rpm
ppc64: gtk-vnc-0.7.0-2.el7.ppc.rpm gtk-vnc-0.7.0-2.el7.ppc64.rpm gtk-vnc-debuginfo-0.7.0-2.el7.ppc.rpm gtk-vnc-debuginfo-0.7.0-2.el7.ppc64.rpm gtk-vnc-devel-0.7.0-2.el7.ppc.rpm gtk-vnc-devel-0.7.0-2.el7.ppc64.rpm gtk-vnc-python-0.7.0-2.el7.ppc64.rpm gtk-vnc2-devel-0.7.0-2.el7.ppc.rpm gtk-vnc2-devel-0.7.0-2.el7.ppc64.rpm gvnc-devel-0.7.0-2.el7.ppc.rpm gvnc-devel-0.7.0-2.el7.ppc64.rpm gvnc-tools-0.7.0-2.el7.ppc64.rpm gvncpulse-0.7.0-2.el7.ppc.rpm gvncpulse-0.7.0-2.el7.ppc64.rpm gvncpulse-devel-0.7.0-2.el7.ppc.rpm gvncpulse-devel-0.7.0-2.el7.ppc64.rpm
ppc64le: gtk-vnc-0.7.0-2.el7.ppc64le.rpm gtk-vnc-debuginfo-0.7.0-2.el7.ppc64le.rpm gtk-vnc-devel-0.7.0-2.el7.ppc64le.rpm gtk-vnc-python-0.7.0-2.el7.ppc64le.rpm gtk-vnc2-devel-0.7.0-2.el7.ppc64le.rpm gvnc-devel-0.7.0-2.el7.ppc64le.rpm gvnc-tools-0.7.0-2.el7.ppc64le.rpm gvncpulse-0.7.0-2.el7.ppc64le.rpm gvncpulse-devel-0.7.0-2.el7.ppc64le.rpm
s390x: gtk-vnc-0.7.0-2.el7.s390.rpm gtk-vnc-0.7.0-2.el7.s390x.rpm gtk-vnc-debuginfo-0.7.0-2.el7.s390.rpm gtk-vnc-debuginfo-0.7.0-2.el7.s390x.rpm gtk-vnc-devel-0.7.0-2.el7.s390.rpm gtk-vnc-devel-0.7.0-2.el7.s390x.rpm gtk-vnc-python-0.7.0-2.el7.s390x.rpm gtk-vnc2-devel-0.7.0-2.el7.s390.rpm gtk-vnc2-devel-0.7.0-2.el7.s390x.rpm gvnc-devel-0.7.0-2.el7.s390.rpm gvnc-devel-0.7.0-2.el7.s390x.rpm gvnc-tools-0.7.0-2.el7.s390x.rpm gvncpulse-0.7.0-2.el7.s390.rpm gvncpulse-0.7.0-2.el7.s390x.rpm gvncpulse-devel-0.7.0-2.el7.s390.rpm gvncpulse-devel-0.7.0-2.el7.s390x.rpm
x86_64: gtk-vnc-0.7.0-2.el7.i686.rpm gtk-vnc-0.7.0-2.el7.x86_64.rpm gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc-devel-0.7.0-2.el7.i686.rpm gtk-vnc-devel-0.7.0-2.el7.x86_64.rpm gtk-vnc-python-0.7.0-2.el7.x86_64.rpm gtk-vnc2-devel-0.7.0-2.el7.i686.rpm gtk-vnc2-devel-0.7.0-2.el7.x86_64.rpm gvnc-devel-0.7.0-2.el7.i686.rpm gvnc-devel-0.7.0-2.el7.x86_64.rpm gvnc-tools-0.7.0-2.el7.x86_64.rpm gvncpulse-0.7.0-2.el7.i686.rpm gvncpulse-0.7.0-2.el7.x86_64.rpm gvncpulse-devel-0.7.0-2.el7.i686.rpm gvncpulse-devel-0.7.0-2.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: gtk-vnc-0.7.0-2.el7.src.rpm
x86_64: gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc2-0.7.0-2.el7.i686.rpm gtk-vnc2-0.7.0-2.el7.x86_64.rpm gvnc-0.7.0-2.el7.i686.rpm gvnc-0.7.0-2.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: gtk-vnc-0.7.0-2.el7.i686.rpm gtk-vnc-0.7.0-2.el7.x86_64.rpm gtk-vnc-debuginfo-0.7.0-2.el7.i686.rpm gtk-vnc-debuginfo-0.7.0-2.el7.x86_64.rpm gtk-vnc-devel-0.7.0-2.el7.i686.rpm gtk-vnc-devel-0.7.0-2.el7.x86_64.rpm gtk-vnc-python-0.7.0-2.el7.x86_64.rpm gtk-vnc2-devel-0.7.0-2.el7.i686.rpm gtk-vnc2-devel-0.7.0-2.el7.x86_64.rpm gvnc-devel-0.7.0-2.el7.i686.rpm gvnc-devel-0.7.0-2.el7.x86_64.rpm gvnc-tools-0.7.0-2.el7.x86_64.rpm gvncpulse-0.7.0-2.el7.i686.rpm gvncpulse-0.7.0-2.el7.x86_64.rpm gvncpulse-devel-0.7.0-2.el7.i686.rpm gvncpulse-devel-0.7.0-2.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2017-5884 https://access.redhat.com/security/cve/CVE-2017-5885 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.4_Release_Notes/index.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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