CVE-2016-8578
published 2016-11-04CVE-2016-8578: The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL…
PriorityP417medium6CVSS 3.1
AVLACLPRHUINSCCNINAH
EPSS
0.39%
32.0th percentile
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.8+dfsg-1 (bookworm) | qemu 1:2.8+dfsg-1 (bookworm) |
| opensuse | leap | — | — |
| qemu | qemu | <= 2.7.1 | — |
| 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 < 1:2.8+dfsg-1 | 1:2.8+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
nvdv3.16.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.0MEDIUM
vendor_debian6.0MEDIUM
vendor_redhat6.0MEDIUM
vendor_ubuntu5.5MEDIUM
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GHSA
GHSA-vqff-7r2x-pwc7: The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal
ghsa_unreviewed·2022-05-13
CVE-2016-8578 [MEDIUM] GHSA-vqff-7r2x-pwc7: The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
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
OSV
CVE-2016-8578: The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal
osv·2016-11-04·CVSS 6.0
CVE-2016-8578 [MEDIUM] CVE-2016-8578: The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
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: 9pfs: potential NULL dereferencein 9pfs routines
vendor_redhat·2016-09-27·CVSS 6.0
CVE-2016-8578 [MEDIUM] CWE-476 Qemu: 9pfs: potential NULL dereferencein 9pfs routines
Qemu: 9pfs: potential NULL dereferencein 9pfs routines
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
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) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 6 (Juno
Debian
CVE-2016-8578: qemu - The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Em...
vendor_debian·2016·CVSS 6.0
CVE-2016-8578 [MEDIUM] CVE-2016-8578: qemu - The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Em...
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
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)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines [fedora-all]
bugzilla·2016-10-10·CVSS 6.0
CVE-2016-8578 [MEDIUM] CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines [fedora-all]
CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines [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
Bugzilla
CVE-2016-8578 xen: Qemu: 9pfs: potential NULL dereferencein 9pfs routines [fedora-all]
bugzilla·2016-10-10·CVSS 6.0
CVE-2016-8578 [MEDIUM] CVE-2016-8578 xen: Qemu: 9pfs: potential NULL dereferencein 9pfs routines [fedora-all]
CVE-2016-8578 xen: Qemu: 9pfs: potential NULL dereferencein 9pfs routines [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 ver
Bugzilla
CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines
bugzilla·2016-10-10·CVSS 6.0
CVE-2016-8578 [MEDIUM] CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines
CVE-2016-8578 Qemu: 9pfs: potential NULL dereferencein 9pfs routines
Quick Emulator(Qemu) built with the virtio-9p back-end support is vulnerable
to a null pointer dereference issue. It could occur while doing an I/O vector
unmarshalling operation in v9fs_iov_vunmarshal() routine.
A privileged user/process inside guest could use this flaw to crash the Qemu
process instance resulting in Dos.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.html
Discussion:
Acknowledgments:
Name: Li Qiang (360.cn Inc.)
---
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1383293]
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1383292]
---
commit ba42ebb863ab7d40adc79298422ed9596df8f73a
Author: Li Qiang
Date: Mon Oct 17
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlhttp://www.openwall.com/lists/oss-security/2016/10/10/14http://www.openwall.com/lists/oss-security/2016/10/10/8http://www.securityfocus.com/bid/93474https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.htmlhttps://security.gentoo.org/glsa/201611-11http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlhttp://www.openwall.com/lists/oss-security/2016/10/10/14http://www.openwall.com/lists/oss-security/2016/10/10/8http://www.securityfocus.com/bid/93474https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.htmlhttps://security.gentoo.org/glsa/201611-11
2016-11-04
Published