CVE-2016-7421
published 2016-12-10CVE-2016-7421: The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service…
PriorityP413medium4.4CVSS 3.1
AVLACLPRHUINSUCNINAH
EPSS
0.40%
33.1th percentile
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.7+dfsg-1 (bookworm) | qemu 1:2.7+dfsg-1 (bookworm) |
| qemu | qemu | <= 2.7.1 | — |
| qemu | qemu | >= 0 < 1:2.7+dfsg-1 | 1:2.7+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.7+dfsg-1 | 1:2.7+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.7+dfsg-1 | 1:2.7+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.7+dfsg-1 | 1:2.7+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.30 | 2.0.0+dfsg-2ubuntu1.30 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.6 | 1:2.5+dfsg-5ubuntu10.6 |
CVSS provenance
nvdv3.14.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/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_ubuntu5.5MEDIUM
vendor_debian4.4MEDIUM
vendor_redhat4.4MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2016-11-09·CVSS 5.5
CVE-2016-5403 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A
privileged attacker inside the guest could use this issue to cause QEMU to
consume resources, resulting in a denial of service. (CVE-2016-5403)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2016-6833, CVE-2016-6834, CVE-2016-6888)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. A privileged attacker inside the guest could use
this issue
Red Hat
Qemu: scsi: pvscsi: infinite loop when processing IO requests
vendor_redhat·2016-09-07·CVSS 4.4
CVE-2016-7421 [MEDIUM] CWE-835 Qemu: scsi: pvscsi: infinite loop when processing IO requests
Qemu: scsi: pvscsi: infinite loop when processing IO requests
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
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) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platfor
Debian
CVE-2016-7421: qemu - The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quic...
vendor_debian·2016·CVSS 4.4
CVE-2016-7421 [MEDIUM] CVE-2016-7421: qemu - The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quic...
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
Scope: local
bookworm: resolved (fixed in 1:2.7+dfsg-1)
bullseye: resolved (fixed in 1:2.7+dfsg-1)
forky: resolved (fixed in 1:2.7+dfsg-1)
sid: resolved (fixed in 1:2.7+dfsg-1)
trixie: resolved (fixed in 1:2.7+dfsg-1)
GHSA
GHSA-764p-pqfm-x2x7: The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi
ghsa_unreviewed·2022-05-13
CVE-2016-7421 [MEDIUM] CWE-834 GHSA-764p-pqfm-x2x7: The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
OSV
CVE-2016-7421: The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi
osv·2016-12-10·CVSS 4.4
CVE-2016-7421 [MEDIUM] CVE-2016-7421: The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi
The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.
OSV
qemu, qemu-kvm vulnerabilities
osv·2016-11-09·CVSS 5.5
CVE-2016-5403 [MEDIUM] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A
privileged attacker inside the guest could use this issue to cause QEMU to
consume resources, resulting in a denial of service. (CVE-2016-5403)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. 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 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2016-6833, CVE-2016-6834, CVE-2016-6888)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. A privileged attacker inside the guest could use
this issue to cause QEMU to crash, resulting in a denial of se
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests
bugzilla·2016-09-16·CVSS 4.4
CVE-2016-7421 [MEDIUM] CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests
CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests
Quick Emulator(Qemu) built with the VMWARE PVSCSI paravirtual SCSI bus
emulation support is vulnerable to an infinite loop issue.
It could occur while processing SCSI IO requests.
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/2016-09/msg03609.html
Reference:
-> http://www.openwall.com/lists/oss-security/2016/09/16/3
Discussion:
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1376733]
---
Acknowledgements:
Name: Li Qiang, Victor V (360.cn Inc.)
---
commit d251157ac1928191af851d199a9ff255d330bec9
Author: Prasad J Pandit
Date: Wed Sep 14 15:09:12 2016 +0530
scsi: pvscsi: li
Bugzilla
CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests [fedora-all]
bugzilla·2016-09-16·CVSS 4.4
CVE-2016-7421 [MEDIUM] CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests [fedora-all]
CVE-2016-7421 Qemu: scsi: pvscsi: infinite loop when processing IO requests [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 v
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9http://www.openwall.com/lists/oss-security/2016/09/16/3http://www.openwall.com/lists/oss-security/2016/09/16/9http://www.securityfocus.com/bid/92998https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.htmlhttps://security.gentoo.org/glsa/201609-01http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9http://www.openwall.com/lists/oss-security/2016/09/16/3http://www.openwall.com/lists/oss-security/2016/09/16/9http://www.securityfocus.com/bid/92998https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.htmlhttps://security.gentoo.org/glsa/201609-01
2016-12-10
Published