CVE-2017-15595

HIGH

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.

References

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

Details

Source: MITRE

Published: 2017-10-18

Updated: 2018-10-30

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 8.8

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

Impact Score: 6

Exploitability Score: 2

Severity: HIGH