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Vulnerability Details : 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 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.
Publish Date : 2017-07-06 Last Update Date : 2018-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2017:1681: qemu-kvm security update (Important) oval:com.redhat.rhsa:def:20171681 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2017-9524

# Product Type Vendor Product Version Update Edition Language
1 Application Qemu Qemu Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Qemu Qemu 1

- References For CVE-2017-9524

https://access.redhat.com/errata/RHSA-2017:1681
REDHAT RHSA-2017:1681
https://access.redhat.com/errata/RHSA-2017:1682
REDHAT RHSA-2017:1682
https://access.redhat.com/errata/RHSA-2017:2408
REDHAT RHSA-2017:2408
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.html
MLIST [qemu-devel] 20170526 [PATCH] nbd: Fully initialize client in case of failed negotiation
https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.html
MLIST [qemu-devel] 20170608 [PATCH] nbd: Fix regression on resiliency to port scan
http://www.debian.org/security/2017/dsa-3925
DEBIAN DSA-3925
http://www.securityfocus.com/bid/99011
BID 99011 QEMU CVE-2017-9524 Denial of Service Vulnerability Release Date:2017-08-07
http://www.openwall.com/lists/oss-security/2017/06/12/1
MLIST [oss-security] 20170612 CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation

- Metasploit Modules Related To CVE-2017-9524

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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