CVE-2017-12809
published 2017-08-23CVE-2017-12809: QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service…
PriorityP420medium6.5CVSS 3.1
AVLACLPRLUINSCCNINAH
EPSS
0.39%
31.2th percentile
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.10.0-1 (bookworm) | qemu 1:2.10.0-1 (bookworm) |
| qemu | qemu | <= 2.9.1 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:2.10.0-1 | 1:2.10.0-1 |
| qemu | qemu | >= 0 < 1:2.10.0-1 | 1:2.10.0-1 |
| qemu | qemu | >= 0 < 1:2.10.0-1 | 1:2.10.0-1 |
| qemu | qemu | >= 0 < 1:2.10.0-1 | 1:2.10.0-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.36 | 2.0.0+dfsg-2ubuntu1.36 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.35 | 2.0.0+dfsg-2ubuntu1.35 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.16 | 1:2.5+dfsg-5ubuntu10.16 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.15 | 1:2.5+dfsg-5ubuntu10.15 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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Ubuntu
QEMU regression
vendor_ubuntu·2017-09-20·CVSS 7.8
CVE-2017-9375 [HIGH] QEMU regression
Title: QEMU regression
Summary: USN-3414-1 introduced a regression in QEMU.
USN-3414-1 fixed vulnerabilities in QEMU. The patch backport for
CVE-2017-9375 was incomplete and caused a regression in the USB xHCI
controller emulation support. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control.
A guest attacker could use this issue to elevate privileges inside the
guest. (CVE-2017-7493)
Li Qiang discovered that QEMU incorrectly handled VMWare PVSCSI emulation.
A privileged attacker inside the guest could use this issue to cause QEMU
to consume resources or crash, resulting in a denial of service.
(CVE-2017-8112)
It was discovered that QEMU incorrectly handled MegaRAID SA
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2017-09-13·CVSS 7.8
CVE-2017-10664 [HIGH] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control.
A guest attacker could use this issue to elevate privileges inside the
guest. (CVE-2017-7493)
Li Qiang discovered that QEMU incorrectly handled VMWare PVSCSI emulation.
A privileged attacker inside the guest could use this issue to cause QEMU
to consume resources or crash, resulting in a denial of service.
(CVE-2017-8112)
It was discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host
Bus Adapter emulation support. A privileged attacker inside the guest could
use this issue to cause QEMU to crash, resulting in a denial of service, or
possibly to obtain sensitive host memory. This issue only affected Ubuntu
16.04 LTS and U
Red Hat
Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
vendor_redhat·2017-07-11·CVSS 6.5
CVE-2017-12809 [MEDIUM] CWE-476 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Pl
Debian
CVE-2017-12809: qemu - QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator ...
vendor_debian·2017·CVSS 6.5
CVE-2017-12809 [MEDIUM] CVE-2017-12809: qemu - QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator ...
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
Scope: local
bookworm: resolved (fixed in 1:2.10.0-1)
bullseye: resolved (fixed in 1:2.10.0-1)
forky: resolved (fixed in 1:2.10.0-1)
sid: resolved (fixed in 1:2.10.0-1)
trixie: resolved (fixed in 1:2.10.0-1)
GHSA
GHSA-2m2j-2qxm-fr56: QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of s
ghsa_unreviewed·2022-05-13
CVE-2017-12809 [MEDIUM] CWE-476 GHSA-2m2j-2qxm-fr56: QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of s
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
OSV
qemu regression
osv·2017-09-20·CVSS 7.8
CVE-2017-9375 [HIGH] qemu regression
qemu regression
USN-3414-1 fixed vulnerabilities in QEMU. The patch backport for
CVE-2017-9375 was incomplete and caused a regression in the USB xHCI
controller emulation support. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control.
A guest attacker could use this issue to elevate privileges inside the
guest. (CVE-2017-7493)
Li Qiang discovered that QEMU incorrectly handled VMWare PVSCSI emulation.
A privileged attacker inside the guest could use this issue to cause QEMU
to consume resources or crash, resulting in a denial of service.
(CVE-2017-8112)
It was discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host
Bus Adapter emulation support. A privileged at
OSV
qemu vulnerabilities
osv·2017-09-13·CVSS 7.8
CVE-2017-7493 [HIGH] qemu vulnerabilities
qemu vulnerabilities
Leo Gaspard discovered that QEMU incorrectly handled VirtFS access control.
A guest attacker could use this issue to elevate privileges inside the
guest. (CVE-2017-7493)
Li Qiang discovered that QEMU incorrectly handled VMWare PVSCSI emulation.
A privileged attacker inside the guest could use this issue to cause QEMU
to consume resources or crash, resulting in a denial of service.
(CVE-2017-8112)
It was discovered that QEMU incorrectly handled MegaRAID SAS 8708EM2 Host
Bus Adapter emulation support. A privileged attacker inside the guest could
use this issue to cause QEMU to crash, resulting in a denial of service, or
possibly to obtain sensitive host memory. This issue only affected Ubuntu
16.04 LTS and Ubuntu 17.04. (CVE-2017-8380)
Li Qiang discovered that QEMU i
OSV
CVE-2017-12809: QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of s
osv·2017-08-23·CVSS 6.5
CVE-2017-12809 [MEDIUM] CVE-2017-12809: QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of s
QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.
No detection rules found.
No public exploits indexed.
Unit42
Palo Alto Networks Discovers New QEMU Vulnerability
blogs_unit42·2017-09-14·CVSS 6.5
CVE-2017-12809 [MEDIUM] Palo Alto Networks Discovers New QEMU Vulnerability
## Palo Alto Networks Discovers New QEMU Vulnerability
Ryan Salsamendi
Published: September 14, 2017
Threat Research
Vulnerabilities
QEMU
Palo Alto Networks Unit 42 recently discovered CVE-2017-12809 , which is a vulnerability affecting QEMU beginning with version 2.8. We reported this vulnerability and it has been fixed in QEMU version 2.10.0 released on August 30, 2017. The latest version can be obtained from QEMU here .
The vulnerability results from a flaw in the way QEMU’s emulated hard drive controller handles the ATA_CACHE_FLUSH command. The QEMU host process will dereference a NULL pointer if ATA_CACHE_FLUSH is issued to a removable drive with no disk present (the default configuration). This causes the host OS to terminate QEMU. In Windows, this can be triggered from user
Unit42
Palo Alto Networks Discovers New QEMU Vulnerability
blogs_unit42·2017-09-14·CVSS 6.5
CVE-2017-12809 [MEDIUM] Palo Alto Networks Discovers New QEMU Vulnerability
Palo Alto Networks Unit 42 recently discovered CVE-2017-12809, which is a vulnerability affecting QEMU beginning with version 2.8. We reported this vulnerability and it has been fixed in QEMU version 2.10.0 released on August 30, 2017. The latest version can be obtained from QEMU here.
The vulnerability results from a flaw in the way QEMU’s emulated hard drive controller handles the ATA_CACHE_FLUSH command. The QEMU host process will dereference a NULL pointer if ATA_CACHE_FLUSH is issued to a removable drive with no disk present (the default configuration). This causes the host OS to terminate QEMU. In Windows, this can be triggered from user mode by an unprivileged process by opening a handle to the emulated CDROM drive using the CreateFile() API, followed by DeviceIoControl() with IOCT
Bugzilla
CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
bugzilla·2017-08-21·CVSS 6.5
CVE-2017-12809 [MEDIUM] CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference
Quick emulator built with the IDE disk and CD/DVD-ROM Emulator support is
vulnerable to a null pointer dereference issue. It could occur while
flushing an empty CDROM device drive.
A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.html
Reference:
-> http://www.openwall.com/lists/oss-security/2017/08/21/2
Discussion:
Acknowledgments:
Name: Ryan Salsamendi (Palo Alto Networks PSIRT)
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1483536]
---
qemu-2.9.1-2.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make
Bugzilla
CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference [fedora-all]
bugzilla·2017-08-21·CVSS 6.5
CVE-2017-12809 [MEDIUM] CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference [fedora-all]
CVE-2017-12809 Qemu: ide: flushing of empty CDROM drives leads to NULL dereference [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 supp
http://www.debian.org/security/2017/dsa-3991http://www.openwall.com/lists/oss-security/2017/08/21/2http://www.securityfocus.com/bid/100451https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.htmlhttp://www.debian.org/security/2017/dsa-3991http://www.openwall.com/lists/oss-security/2017/08/21/2http://www.securityfocus.com/bid/100451https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.html
2017-08-23
Published