Vulnerability Details : CVE-2017-17566
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page.
Vulnerability category: Denial of service
Products affected by CVE-2017-17566
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-17566
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-17566
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
1.1
|
6.0
|
NIST |
References for CVE-2017-17566
-
https://www.debian.org/security/2018/dsa-4112
Debian -- Security Information -- DSA-4112-1 xen
-
https://xenbits.xen.org/xsa/advisory-248.html
XSA-248 - Xen Security AdvisoriesMitigation;Patch;Vendor Advisory
-
https://support.citrix.com/article/CTX232096
Citrix XenServer Multiple Security Updates
-
http://www.openwall.com/lists/oss-security/2017/12/12/4
oss-security - Xen Security Advisory 248 - x86 PV guests may gain access to internally used pagesMailing List
-
http://www.securitytracker.com/id/1040768
Xen Page Access Bug Lets Local Guest Users Deny Service and Potentially Gain Elevated Privileges on the Host System - SecurityTracker
-
http://www.securityfocus.com/bid/102167
Xen '/mm/hap/hap.c' Memory Corruption Vulnerability
-
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
[SECURITY] [DLA 1549-1] xen security update
-
https://security.gentoo.org/glsa/201801-14
Xen: Multiple vulnerabilities (GLSA 201801-14) — Gentoo security
-
https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
[SECURITY] [DLA 1230-1] xen security update
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