Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.9.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/100818Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039348Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-231.htmlPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://support.citrix.com/article/CTX227185
- https://www.debian.org/security/2017/dsa-4050
- http://www.securityfocus.com/bid/100818Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039348Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-231.htmlPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://support.citrix.com/article/CTX227185
- https://www.debian.org/security/2017/dsa-4050
FAQ
What is CVE-2017-14316?
CVE-2017-14316 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 `memfl...
How severe is CVE-2017-14316?
CVE-2017-14316 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-14316?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.