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CVE-2017-14318
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CVE-2017-14318
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
- xen
Products
- xen 4.5.0,
- xen 4.5.1,
- xen 4.5.2,
- xen 4.5.3,
- xen 4.5.5,
- xen 4.6.0,
- xen 4.6.1,
- xen 4.6.3,
- xen 4.6.4,
- xen 4.6.5,
- xen 4.6.6,
- xen 4.7.0,
- xen 4.7.1,
- xen 4.7.2,
- xen 4.7.3,
- xen 4.8.0,
- xen 4.8.1,
- xen 4.9.0
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
