Vulnerability Description
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode.
CVSS Score
7.8
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.9.1 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2017/12/12/3Mailing List
- http://www.securityfocus.com/bid/102172
- http://www.securitytracker.com/id/1040770
- https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://security.gentoo.org/glsa/201801-14
- https://support.citrix.com/article/CTX232096
- https://www.debian.org/security/2018/dsa-4112
- https://xenbits.xen.org/xsa/advisory-250.htmlMitigationPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/12/12/3Mailing List
- http://www.securityfocus.com/bid/102172
- http://www.securitytracker.com/id/1040770
- https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://security.gentoo.org/glsa/201801-14
FAQ
What is CVE-2017-17564?
CVE-2017-17564 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counti...
How severe is CVE-2017-17564?
CVE-2017-17564 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-17564?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.