Vulnerability Details : CVE-2014-3125
Xen 4.4.x, when running on an ARM system, does not properly context switch the CNTKCTL_EL1 register, which allows local guest users to modify the hardware timers and cause a denial of service (crash) via unspecified vectors.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2014-3125
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-2014-3125
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.2
|
MEDIUM | AV:A/AC:L/Au:S/C:N/I:P/A:C |
5.1
|
7.8
|
NIST |
CWE ids for CVE-2014-3125
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Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-3125
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http://xenbits.xen.org/xsa/advisory-91.html
XSA-91 - Xen Security AdvisoriesPatch;Vendor Advisory
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http://www.securityfocus.com/bid/67157
Xen ARM 'CNTKCTL_EL1' Register Local Denial of Service Vulnerability
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http://www.openwall.com/lists/oss-security/2014/04/30/5
oss-security - Xen Security Advisory 91 - Hardware timer context is not properly context switched on ARM
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http://www.openwall.com/lists/oss-security/2014/04/30/11
oss-security - Re: Xen Security Advisory 91 - Hardware timer context is not properly context switched on ARM
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http://www.securitytracker.com/id/1030184
Xen CNTKCTL_EL1 Context Switching Flaw Lets Local Users Deny Service - SecurityTracker
Products affected by CVE-2014-3125
- cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*