CVE-2017-15595 Information

Description

An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (unbounded recursion stack consumption and hypervisor crash) or possibly gain privileges via crafted page-table stacking.

CVSS Vector

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

Reference

https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html https://security.gentoo.org/glsa/201801-14 https://support.citrix.com/article/CTX228867 https://www.debian.org/security/2017/dsa-4050 https://www.exploit-db.com/exploits/43014/ https://xenbits.xen.org/xsa/advisory-240.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8