Vulnerability Details : CVE-2017-14317
A domain cleanup issue was discovered in the C xenstore daemon (aka cxenstored) in Xen through 4.9.x. When shutting down a VM with a stubdomain, a race in cxenstored may cause a double-free. The xenstored daemon may crash, resulting in a DoS of any parts of the system relying on it (including domain creation / destruction, ballooning, device changes, etc.).
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-14317
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-2017-14317
| 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 |
|
5.6
|
MEDIUM | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
1.1
|
4.0
|
NIST |
CWE ids for CVE-2017-14317
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-14317
-
http://www.securityfocus.com/bid/100826
Xen CVE-2017-14317 Double Free Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1039350
Xen Race Condition in 'cxenstored' Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System - SecurityTrackerThird Party Advisory;VDB Entry
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http://xenbits.xen.org/xsa/advisory-233.html
XSA-233 - Xen Security AdvisoriesPatch;Vendor Advisory
-
https://www.debian.org/security/2017/dsa-4050
Debian -- Security Information -- DSA-4050-1 xen
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https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
[SECURITY] [DLA 1549-1] xen security update
Products affected by CVE-2017-14317
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*