Home/CVE/Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause
CVE

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

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.

CRITICAL · CVSS 9.1 EPSS 0.00839
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
xen<= 4.8.1
▣

Scoring & Timeline

9.1
CRITICAL · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Jul 2017 · 01:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
⚑

Vendor Advisories

2
suse-csafSUSE-SU-2017:1812-1
suse-csafSUSE-SU-2017:1795-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.debian.org/security/2017/dsa-3969
http://www.securityfocus.com/bid/99157
http://www.securitytracker.com/id/1038731
https://security.gentoo.org/glsa/201708-03
https://xenbits.xen.org/xsa/advisory-221.htmlMailing ListMitigationThird Party Advisory
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