Vulnerability Details : CVE-2015-4163
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2015-4163
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-4163
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-2015-4163
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
References for CVE-2015-4163
-
https://support.citrix.com/article/CTX206006
Citrix NetScaler Service Delivery Appliance Multiple Security Updates
-
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
[security-announce] SUSE-SU-2015:1042-1: important: Security update for
-
http://xenbits.xen.org/xsa/advisory-134.html
XSA-134 - Xen Security AdvisoriesVendor Advisory
-
http://support.citrix.com/article/CTX201145
Citrix XenServer Multiple Security Updates
-
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
[security-announce] SUSE-SU-2015:1045-1: important: Security update for
-
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
[security-announce] SUSE-SU-2015:1157-1: important: Security update for
-
http://www.securityfocus.com/bid/75141
Xen CVE-2015-4163 Local Denial of Service Vulnerability
-
https://security.gentoo.org/glsa/201604-03
Xen: Multiple vulnerabilities (GLSA 201604-03) — Gentoo security
-
http://www.securitytracker.com/id/1032568
Xen GNTTABOP_swap_grant_ref() Missing Version Check Lets Local Guest Users Deny Service on the Host System - SecurityTracker
-
http://www.debian.org/security/2015/dsa-3286
Debian -- Security Information -- DSA-3286-1 xen
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