Medium severity5.5NVD Advisory· Published Jul 27, 2018· Updated Jun 17, 2026

CVE-2016-9603

Description

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

QEMU/Qemullm-fuzzy3 versions
<2.9+ 2 more
- (no CPE)range: <2.9
- (no CPE)range: 2.9
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*range: <2.9.0
osv-coords31 versions
pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%205 pkg:rpm/suse/xen&distro=SUSE%20Manager%202.1 pkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%202.1 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATA pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS
< 4.4.4_16-54.1+ 30 more
- (no CPE)range: < 4.4.4_16-54.1
- (no CPE)range: < 4.4.4_16-54.1
- (no CPE)range: < 2.6.2-41.16.1
- (no CPE)range: < 2.6.2-41.16.1
- (no CPE)range: < 2.3.1-33.3.3
- (no CPE)range: < 4.4.4_16-22.36.1
- (no CPE)range: < 4.4.4_16-22.36.1
- (no CPE)range: < 4.4.4_16-54.1
- (no CPE)range: < 4.7.2_04-39.1
- (no CPE)range: < 4.7.2_04-39.1
- (no CPE)range: < 4.7.2_04-39.1
- (no CPE)range: < 4.7.2_04-39.1
- (no CPE)range: < 4.2.5_21-41.1
- (no CPE)range: < 4.2.5_21-41.1
- (no CPE)range: < 4.2.5_21-41.1
- (no CPE)range: < 4.5.5_10-22.14.1
- (no CPE)range: < 4.5.5_10-22.14.1
- (no CPE)range: < 4.5.5_10-22.14.1
- (no CPE)range: < 2.6.2-41.16.1
- (no CPE)range: < 2.6.2-41.16.1
- (no CPE)range: < 1.4.2-60.3.1
- (no CPE)range: < 2.3.1-33.3.3
- (no CPE)range: < 4.2.5_21-41.1
- (no CPE)range: < 4.5.5_10-22.14.1
- (no CPE)range: < 2.3.1-33.3.3
- (no CPE)range: < 1.4.2-60.3.1
- (no CPE)range: < 1.4.2-53.11.1
- (no CPE)range: < 1.4.2-53.11.1
- (no CPE)range: < 4.2.5_21-41.1
- (no CPE)range: < 1.4.2-53.11.1
- (no CPE)range: < 2.0.2-48.34.3
Citrix Systems/Xenserver5 versions
cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:6.2.0:sp1:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:6.5:sp1:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:7.1:*:*:*:*:*:*:*
Red Hat/Openstack6 versions
cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
Debian/linux
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Desktop2 versions
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server2 versions
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server Aus2 versions
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Eus3 versions
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation2 versions
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/96893nvdThird Party AdvisoryVDB Entry
www.securitytracker.com/id/1038023nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2017:0980nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0981nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0982nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0983nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0984nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0985nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0987nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:0988nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:1205nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:1206nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:1441nvdThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
lists.debian.org/debian-lts-announce/2018/02/msg00005.htmlnvdThird Party Advisory
security.gentoo.org/glsa/201706-03nvdThird Party Advisory
support.citrix.com/article/CTX221578nvdThird Party Advisory
lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlnvd

News mentions

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cvss	0.358
epss	0.004
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000