CVE-2017-9524
published 2017-07-06CVE-2017-9524: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
4.09%
89.7th percentile
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.8+dfsg-7 (bookworm) | qemu 1:2.8+dfsg-7 (bookworm) |
| qemu | qemu | <= 2.9.1 | — |
| qemu | qemu | >= 0 < 1:2.8+dfsg-7 | 1:2.8+dfsg-7 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-7 | 1:2.8+dfsg-7 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-7 | 1:2.8+dfsg-7 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-7 | 1:2.8+dfsg-7 |
| 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
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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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: nbd: segmentation fault due to client non-negotiation
vendor_redhat·2017-05-26·CVSS 7.5
CVE-2017-9524 [HIGH] CWE-476 Qemu: nbd: segmentation fault due to client non-negotiation
Qemu: nbd: segmentation fault due to client non-negotiation
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
Quick Emulator (QEMU) built with Network Block Device (NBD) Server support was vulnerable to a null-pointer dereference issue. The flaw could occur when releasing a client that was not initialized due to failed negotiation. A remote user or process could exploit this flaw to crash the qemu-nbd server (denial of service).
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterpris
Debian
CVE-2017-9524: qemu - The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Bl...
vendor_debian·2017·CVSS 7.5
CVE-2017-9524 [HIGH] CVE-2017-9524: qemu - The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Bl...
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
Scope: local
bookworm: resolved (fixed in 1:2.8+dfsg-7)
bullseye: resolved (fixed in 1:2.8+dfsg-7)
forky: resolved (fixed in 1:2.8+dfsg-7)
sid: resolved (fixed in 1:2.8+dfsg-7)
trixie: resolved (fixed in 1:2.8+dfsg-7)
GHSA
GHSA-3hp7-3fxw-3v9g: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de
ghsa_unreviewed·2022-05-13
CVE-2017-9524 [HIGH] CWE-20 GHSA-3hp7-3fxw-3v9g: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
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-2017-9524: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de
osv·2017-07-06·CVSS 7.5
CVE-2017-9524 [HIGH] CVE-2017-9524: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation
bugzilla·2017-06-09·CVSS 7.5
CVE-2017-9524 [HIGH] CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation
Quick Emulator(Qemu) built with the Network Block Device(NBD) Server support
is vulnerable to a null pointer dereference issue. It could occur while
releasing a client, which was not initialised due to failed negotiation.
A remote user/process could use this flaw to crash the qemu-nbd server
resulting in DoS.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.html
-> https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.html
Reference:
-> http://www.openwall.com/lists/oss-security/2017/06/12/1
Discussion:
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1460173]
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1460172]
---
(I
Bugzilla
CVE-2017-9524 xen: Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]
bugzilla·2017-06-09·CVSS 7.5
CVE-2017-9524 [HIGH] CVE-2017-9524 xen: Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]
CVE-2017-9524 xen: Qemu: nbd: segmentation fault due to client non-negotiation [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 supporte
Bugzilla
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]
bugzilla·2017-06-09·CVSS 7.5
CVE-2017-9524 [HIGH] CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation [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
http://www.debian.org/security/2017/dsa-3925http://www.openwall.com/lists/oss-security/2017/06/12/1http://www.securityfocus.com/bid/99011https://access.redhat.com/errata/RHSA-2017:1681https://access.redhat.com/errata/RHSA-2017:1682https://access.redhat.com/errata/RHSA-2017:2408https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.htmlhttp://www.debian.org/security/2017/dsa-3925http://www.openwall.com/lists/oss-security/2017/06/12/1http://www.securityfocus.com/bid/99011https://access.redhat.com/errata/RHSA-2017:1681https://access.redhat.com/errata/RHSA-2017:1682https://access.redhat.com/errata/RHSA-2017:2408https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.html
2017-07-06
Published