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CVE-2017-14316
Date: September 12, 2017
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.
Language: C
Severity Score
Related Resources (10)
Severity Score
Weakness Type (CWE)
Out-of-bounds Read
CWE-125CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | HIGH |
CVSS v2
| Base Score: |
|
|---|---|
| Access Vector (AV): | LOCAL |
| Access Complexity (AC): | LOW |
| Authentication (AU): | NONE |
| Confidentiality (C): | COMPLETE |
| Integrity (I): | COMPLETE |
| Availability (A): | COMPLETE |
| Additional information: |