CVE-2016-9922
published 2017-03-27CVE-2016-9922: The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.41%
33.8th percentile
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:2.8+dfsg-1 (bookworm) | qemu 1:2.8+dfsg-1 (bookworm) |
| qemu | qemu | <= 2.7.1 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.33 | 2.0.0+dfsg-2ubuntu1.33 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.11 | 1:2.5+dfsg-5ubuntu10.11 |
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
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2017-04-20·CVSS 5.5
CVE-2016-10028 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU
device. An attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue only affected Ubuntu
16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029)
Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2016-10155)
Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet
Controller. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. This issue only
affected Ub
Red Hat
Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
vendor_redhat·2016-10-18·CVSS 5.5
CVE-2016-9922 [MEDIUM] CWE-369 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
Package: kvm (Red Hat Enterprise Linux 5) - Will not fix
Package: xen (Red Hat Enterprise Linux 5) - Will not fix
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 6) - Will not fix
Package: qemu-kvm (Red Hat Enterprise Linux 7) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)) - Will not fix
Debian
CVE-2016-9922: qemu - The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulat...
vendor_debian·2016·CVSS 5.5
CVE-2016-9922 [MEDIUM] CVE-2016-9922: qemu - The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulat...
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
Scope: local
bookworm: resolved (fixed in 1:2.8+dfsg-1)
bullseye: resolved (fixed in 1:2.8+dfsg-1)
forky: resolved (fixed in 1:2.8+dfsg-1)
sid: resolved (fixed in 1:2.8+dfsg-1)
trixie: resolved (fixed in 1:2.8+dfsg-1)
GHSA
GHSA-83fr-598x-jggw: The cirrus_do_copy function in hw/display/cirrus_vga
ghsa_unreviewed·2022-05-13
CVE-2016-9922 [MEDIUM] CWE-369 GHSA-83fr-598x-jggw: The cirrus_do_copy function in hw/display/cirrus_vga
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
OSV
qemu vulnerabilities
osv·2017-04-20·CVSS 5.5
CVE-2016-10028 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU
device. An attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue only affected Ubuntu
16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029)
Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2016-10155)
Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet
Controller. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. This issue only
affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7907)
It was disc
OSV
CVE-2016-9922: The cirrus_do_copy function in hw/display/cirrus_vga
osv·2017-03-27·CVSS 5.5
CVE-2016-9922 [MEDIUM] CVE-2016-9922: The cirrus_do_copy function in hw/display/cirrus_vga
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-9921 CVE-2016-9922 qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [fedora-all]
bugzilla·2016-11-28·CVSS 6.5
CVE-2016-9921 [MEDIUM] CVE-2016-9921 CVE-2016-9922 qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [fedora-all]
CVE-2016-9921 CVE-2016-9922 qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [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 multip
Bugzilla
CVE-2016-9921 CVE-2016-9922 xen: Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [fedora-all]
bugzilla·2016-11-28·CVSS 6.5
CVE-2016-9921 [MEDIUM] CVE-2016-9921 CVE-2016-9922 xen: Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [fedora-all]
CVE-2016-9921 CVE-2016-9922 xen: Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy [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 m
Bugzilla
CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
bugzilla·2016-05-09·CVSS 6.5
CVE-2016-9921 [MEDIUM] CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA.
A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
Upstream patch
-> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03968.html
Reference:
-> http://www.openwall.com/lists/oss-security/2016/12/08/9
Discussion:
Acknowledgments:
Name: Qinghao Tang (Qihoo 360), Li Qiang (Qihoo 360), Jiangxin (Huawei Inc.)
---
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1399055]
---
Created qemu tracking bugs for this i
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca9024572804ba751aa1a7e70http://www.openwall.com/lists/oss-security/2016/12/09/1http://www.securityfocus.com/bid/94803https://access.redhat.com/errata/RHSA-2017:2392https://access.redhat.com/errata/RHSA-2017:2408https://bugzilla.redhat.com/show_bug.cgi?id=1334398https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.htmlhttp://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=4299b90e9ba9ce5ca9024572804ba751aa1a7e70http://www.openwall.com/lists/oss-security/2016/12/09/1http://www.securityfocus.com/bid/94803https://access.redhat.com/errata/RHSA-2017:2392https://access.redhat.com/errata/RHSA-2017:2408https://bugzilla.redhat.com/show_bug.cgi?id=1334398https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html
2017-03-27
Published