Vulnerability Details : CVE-2014-5148
Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2014-5148
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-2014-5148
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST |
CWE ids for CVE-2014-5148
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-5148
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https://exchange.xforce.ibmcloud.com/vulnerabilities/95233
Xen system register denial of service CVE-2014-5148 Vulnerability Report
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http://xenbits.xenproject.org/xsa/advisory-103.html
XSA-103 - Xen Security AdvisoriesPatch;Vendor Advisory
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http://www.securityfocus.com/bid/69189
Xen CVE-2014-5147 Local Denial of Service Vulnerability
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http://www.securitytracker.com/id/1030725
Xen Lets Local Users on a Guest System Deny Service or Gain Elevated Privileges on the Guest System - SecurityTracker
Products affected by CVE-2014-5148
- cpe:2.3:a:xen:xen:4.4.1:*:*:*:*:*:x64:*
- cpe:2.3:o:xen:xen:4.4.0:-:*:*:*:*:x64:*