CVE-2017-14318
Xen NULL Pointer Dereference Interrupted Grant Table Operation
Description
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.
INFO
Published Date :
Sept. 12, 2017, 3:29 p.m.
Last Modified :
Nov. 30, 2017, 2:29 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-14318.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/100817 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039349 | Third Party Advisory VDB Entry |
| http://xenbits.xen.org/xsa/advisory-232.html | Patch Vendor Advisory |
| https://support.citrix.com/article/CTX227185 | |
| https://www.debian.org/security/2017/dsa-4050 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-14318 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-14318 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 30, 2017
Action Type Old Value New Value Added Reference https://www.debian.org/security/2017/dsa-4050 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 15, 2017
Action Type Old Value New Value Added Reference https://support.citrix.com/article/CTX227185 [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 23, 2017
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type http://xenbits.xen.org/xsa/advisory-232.html No Types Assigned http://xenbits.xen.org/xsa/advisory-232.html Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/100817 No Types Assigned http://www.securityfocus.com/bid/100817 Third Party Advisory, VDB Entry Changed Reference Type http://www.securitytracker.com/id/1039349 No Types Assigned http://www.securitytracker.com/id/1039349 Third Party Advisory, VDB Entry Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.6.6:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.7.2:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.7.3:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:* *cpe:2.3:o:xen:xen:4.9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 16, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/100817 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 15, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1039349 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-14318 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-14318
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.24592
percentile