CVE-2017-9524

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 5.28% Top 15%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1681 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2017/06/12/1 patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2017:1682 third party advisory vendor advisory
http://www.securityfocus.com/bid/99011 third party advisory vdb entry
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.html patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2017:2408 third party advisory vendor advisory
http://www.debian.org/security/2017/dsa-3925 third party advisory vendor advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.html patch mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-9524?
CVE-2017-9524 has been scored as a high severity vulnerability.
How to fix CVE-2017-9524?
To fix CVE-2017-9524, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9524 being actively exploited in the wild?
It is possible that CVE-2017-9524 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.