CVE-2017-17563

7.8 HIGH

Published: December 12, 2017 Modified: May 13, 2026

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 an incorrect mask for reference-count overflow checking in shadow mode.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.openwall.com/lists/oss-security/2017/12/12/2

Source: cve@mitre.org

Mailing List

http://www.securityfocus.com/bid/102169

Source: cve@mitre.org

http://www.securitytracker.com/id/1040769

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html

Source: cve@mitre.org

https://security.gentoo.org/glsa/201801-14

Source: cve@mitre.org

https://support.citrix.com/article/CTX232096

Source: cve@mitre.org

https://www.debian.org/security/2018/dsa-4112

Source: cve@mitre.org

https://xenbits.xen.org/xsa/advisory-249.html

Source: cve@mitre.org

Mitigation Patch Vendor Advisory

http://www.openwall.com/lists/oss-security/2017/12/12/2