Vulnerability Details : CVE-2017-15595
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.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-15595
Probability of exploitation activity in the next 30 days: 0.10%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 41 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-15595
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST |
|
8.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
2.0
|
6.0
|
NIST |
CWE ids for CVE-2017-15595
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-15595
-
https://xenbits.xen.org/xsa/advisory-240.html
XSA-240 - Xen Security AdvisoriesMitigation;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
[SECURITY] [DLA 1181-1] xen security update
-
https://support.citrix.com/article/CTX228867
Citrix XenServer Multiple Security Updates
-
https://www.debian.org/security/2017/dsa-4050
Debian -- Security Information -- DSA-4050-1 xen
-
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
[SECURITY] [DLA 1559-1] xen security update
-
https://security.gentoo.org/glsa/201801-14
Xen: Multiple vulnerabilities (GLSA 201801-14) — Gentoo security
-
https://www.exploit-db.com/exploits/43014/
Xen - Pagetable De-typing Unbounded Recursion
Products affected by CVE-2017-15595
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*