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CVE-2017-14316

CVE information

Published

6 years ago

Last Modified

5 years ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

Description

A parameter verification issue was discovered in Xen through 4.9.x. The function `alloc_heap_pages` allows callers to specify the first NUMA node that should be used for allocations through the `memflags` parameter; the node is extracted using the `MEMF_get_node` macro. While the function checks to see if the special constant `NUMA_NO_NODE` is specified, it otherwise does not handle the case where `node >= MAX_NUMNODES`. This allows an out-of-bounds access to an internal array..

CVSSv2.0 Score

Severity
High
Base Score
7.2/10
Exploit Score
3.9/10
Access Vector
Local
Access Complexity
Low
Authentication Required
None
Impact Score
10/10
Confidentiality Impact
Complete
Availability Impact
Complete
Integrity Impact
Complete

CVSSv3.1 Score

Severity
High
Base Score
8.8/10
Exploit Score
2/10
Access Vector
Local
Access Complexity
Low
Privileges Required
Low
Impact Score
6/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Changed
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
  Yes
- -