Vulnerability Details : CVE-2016-2271
VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-2271
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 25 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-2271
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
References for CVE-2016-2271
-
http://www.securitytracker.com/id/1035043
Xen vmx_vmexit_handler() Lets Local Users on a Guest System Cause Denial of Service Conditions on the Guest System - SecurityTracker
-
http://support.citrix.com/article/CTX209443
Citrix XenServer Multiple Security Updates
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html
[SECURITY] Fedora 23 Update: xen-4.5.2-8.fc23
-
http://xenbits.xen.org/xsa/advisory-170.html
XSA-170 - Xen Security AdvisoriesPatch;Vendor Advisory
-
https://security.gentoo.org/glsa/201604-03
Xen: Multiple vulnerabilities (GLSA 201604-03) — Gentoo security
-
http://www.debian.org/security/2016/dsa-3519
Debian -- Security Information -- DSA-3519-1 xen
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html
[SECURITY] Fedora 22 Update: xen-4.5.2-8.fc22
Products affected by CVE-2016-2271
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*