Vulnerability Details : CVE-2012-6031
The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the "bad_copy error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
Vulnerability category: Input validationDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2012-6031
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-2012-6031
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.7
|
MEDIUM | AV:L/AC:M/Au:N/C:N/I:N/A:C |
3.4
|
6.9
|
NIST |
CWE ids for CVE-2012-6031
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-6031
-
http://security.gentoo.org/glsa/glsa-201309-24.xml
Xen: Multiple vulnerabilities (GLSA 201309-24) — Gentoo security
-
http://www.securityfocus.com/bid/55410
Xen 'TMEM hypercall' Multiple Security Vulnerabilities
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/78268
Xen TMEM privilege escalation CVE-2012-6036 Vulnerability Report
-
http://www.openwall.com/lists/oss-security/2012/09/05/8
oss-security - Xen Security Advisory 15 (CVE-2012-3497) - multiple TMEM hypercall vulnerabilities
-
http://www.securitytracker.com/id?1027482
Xen Transcendent Memory (TMEM) Multiple Flaws Lets Local Users on the Guest Operating System Gain Elevated Privileges on the Host - SecurityTracker
-
https://security.gentoo.org/glsa/201604-03
Xen: Multiple vulnerabilities (GLSA 201604-03) — Gentoo security
-
http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities
Security Announcements (Historical) - Xen
-
http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html
Xen project Mailing List
Products affected by CVE-2012-6031
- cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*