CVE-2017-7718
published 2017-04-20CVE-2017-7718: hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.50%
39.9th percentile
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.8+dfsg-4 (bookworm) | qemu 1:2.8+dfsg-4 (bookworm) |
| msrc | azl3_qemu_8.2.0-16_on_azure_linux_3.0 | — | — |
| qemu | qemu | <= 2.8.1.1 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:2.8+dfsg-4 | 1:2.8+dfsg-4 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-4 | 1:2.8+dfsg-4 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-4 | 1:2.8+dfsg-4 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-4 | 1:2.8+dfsg-4 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.34 | 2.0.0+dfsg-2ubuntu1.34 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.14 | 1:2.5+dfsg-5ubuntu10.14 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.0MEDIUM
vendor_ubuntu6.0MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2017-05-16·CVSS 6.0
CVE-2017-7377 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing.
A privileged attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service. (CVE-2017-7377, CVE-2017-8086)
Jiangxin discovered that QEMU incorrectly handled the Cirrus VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2017-7718)
Li Qiang and Jiangxin discovered that QEMU incorrectly handled the Cirrus
VGA device when being used with a VNC connection. A privileged attacker
inside the guest could use this issue to cause QEMU to crash, resulting in
a denial of service, or possibly execute arbitrary code on the
Microsoft
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying
vendor_msrc·2017-04-11·CVSS 5.5
CVE-2017-7718 [MEDIUM] CWE-125 hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for
Red Hat
Qemu: display: cirrus: OOB read access issue
vendor_redhat·2017-03-14·CVSS 5.5
CVE-2017-7718 [MEDIUM] CWE-125 Qemu: display: cirrus: OOB read access issue
Qemu: display: cirrus: OOB read access issue
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
Package: kvm (Red Hat Enterprise Linux 5) - Will not fix
Package: xen (Red Hat Enterprise Linux 5) - Will not fix
Package: qemu-kvm-rhev (Red
Debian
CVE-2017-7718: qemu - hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS p...
vendor_debian·2017·CVSS 5.5
CVE-2017-7718 [MEDIUM] CVE-2017-7718: qemu - hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS p...
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Scope: local
bookworm: resolved (fixed in 1:2.8+dfsg-4)
bullseye: resolved (fixed in 1:2.8+dfsg-4)
forky: resolved (fixed in 1:2.8+dfsg-4)
sid: resolved (fixed in 1:2.8+dfsg-4)
trixie: resolved (fixed in 1:2.8+dfsg-4)
GHSA
GHSA-grqv-x6q8-x92g: hw/display/cirrus_vga_rop
ghsa_unreviewed·2022-05-13
CVE-2017-7718 [MEDIUM] CWE-125 GHSA-grqv-x6q8-x92g: hw/display/cirrus_vga_rop
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
OSV
qemu vulnerabilities
osv·2017-05-16·CVSS 6.0
CVE-2017-7377 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing.
A privileged attacker inside the guest could use this issue to cause QEMU
to crash, resulting in a denial of service. (CVE-2017-7377, CVE-2017-8086)
Jiangxin discovered that QEMU incorrectly handled the Cirrus VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2017-7718)
Li Qiang and Jiangxin discovered that QEMU incorrectly handled the Cirrus
VGA device when being used with a VNC connection. A privileged attacker
inside the guest could use this issue to cause QEMU to crash, resulting in
a denial of service, or possibly execute arbitrary code on the host. In the
default installation, when QEMU is used with li
OSV
CVE-2017-7718: hw/display/cirrus_vga_rop
osv·2017-04-20·CVSS 5.5
CVE-2017-7718 [MEDIUM] CVE-2017-7718: hw/display/cirrus_vga_rop
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-7718 Qemu: display: cirrus: OOB read access issue [fedora-all]
bugzilla·2017-04-19·CVSS 5.5
CVE-2017-7718 [MEDIUM] CVE-2017-7718 Qemu: display: cirrus: OOB read access issue [fedora-all]
CVE-2017-7718 Qemu: display: cirrus: OOB read access issue [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora
Bugzilla
CVE-2017-7718 xen: Qemu: display: cirrus: OOB read access issue [fedora-all]
bugzilla·2017-04-19·CVSS 5.5
CVE-2017-7718 [MEDIUM] CVE-2017-7718 xen: Qemu: display: cirrus: OOB read access issue [fedora-all]
CVE-2017-7718 xen: Qemu: display: cirrus: OOB read access issue [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of F
Bugzilla
CVE-2017-7718 Qemu: display: cirrus: OOB read access issue
bugzilla·2017-04-19·CVSS 5.5
CVE-2017-7718 [MEDIUM] CVE-2017-7718 Qemu: display: cirrus: OOB read access issue
CVE-2017-7718 Qemu: display: cirrus: OOB read access issue
Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is
vulnerable to an out-of-bounds access issue. It could occur while copying
VGA data via bitblt functions cirrus_bitblt_rop_fwd_transp_ and/or
cirrus_bitblt_rop_fwd_.
A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS.
Upstream patch
-> http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=215902d7b6fb50c6fc216fc74f770858278ed904
Reference:
-> http://www.openwall.com/lists/oss-security/2017/04/19/4
Discussion:
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1443444]
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1443443]
---
Acknowledgements:
Name: Jiangxin (
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=215902d7b6fb50c6fc216fc74f770858278ed904http://www.openwall.com/lists/oss-security/2017/04/19/4http://www.securityfocus.com/bid/97957https://access.redhat.com/errata/RHSA-2017:0980https://access.redhat.com/errata/RHSA-2017:0981https://access.redhat.com/errata/RHSA-2017:0982https://access.redhat.com/errata/RHSA-2017:0983https://access.redhat.com/errata/RHSA-2017:0984https://access.redhat.com/errata/RHSA-2017:0988https://access.redhat.com/errata/RHSA-2017:1205https://access.redhat.com/errata/RHSA-2017:1206https://access.redhat.com/errata/RHSA-2017:1430https://access.redhat.com/errata/RHSA-2017:1431https://access.redhat.com/errata/RHSA-2017:1441https://bugzilla.redhat.com/show_bug.cgi?id=1443441https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://security.gentoo.org/glsa/201706-03http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=215902d7b6fb50c6fc216fc74f770858278ed904http://www.openwall.com/lists/oss-security/2017/04/19/4http://www.securityfocus.com/bid/97957https://access.redhat.com/errata/RHSA-2017:0980https://access.redhat.com/errata/RHSA-2017:0981https://access.redhat.com/errata/RHSA-2017:0982https://access.redhat.com/errata/RHSA-2017:0983https://access.redhat.com/errata/RHSA-2017:0984https://access.redhat.com/errata/RHSA-2017:0988https://access.redhat.com/errata/RHSA-2017:1205https://access.redhat.com/errata/RHSA-2017:1206https://access.redhat.com/errata/RHSA-2017:1430https://access.redhat.com/errata/RHSA-2017:1431https://access.redhat.com/errata/RHSA-2017:1441https://bugzilla.redhat.com/show_bug.cgi?id=1443441https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://security.gentoo.org/glsa/201706-03
2017-04-20
Published