Critical severity · published Jul 5, 2017
CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS…
9.1
CVSS
2.6%
EPSS
No
On KEV
Description
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
through 4.8.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-10917
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-10917
www.debian.org
http://www.debian.org/security/2017/dsa-3969
www.securityfocus.com
http://www.securityfocus.com/bid/99157
www.securitytracker.com
http://www.securitytracker.com/id/1038731
security.gentoo.org
https://security.gentoo.org/glsa/201708-03
Mailing List
https://xenbits.xen.org/xsa/advisory-221.html
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