High severity · published Jul 6, 2017
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…
7.5
CVSS
4.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.1% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
QE
Qemu · Qemu
through 2.9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-9524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-9524
Third Party Advisory
http://www.debian.org/security/2017/dsa-3925
Mailing List
http://www.openwall.com/lists/oss-security/2017/06/12/1
Third Party Advisory
http://www.securityfocus.com/bid/99011
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1681
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1682
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408
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