High severity · published Sep 12, 2017
CVE-2017-14316
A parameter verification issue was discovered in Xen through 4.9.x
8.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XE
Xen · Xen
through 4.9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14316
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14316
Third Party Advisory
http://www.securityfocus.com/bid/100818
Third Party Advisory
http://www.securitytracker.com/id/1039348
Patch
http://xenbits.xen.org/xsa/advisory-231.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
support.citrix.com
https://support.citrix.com/article/CTX227185
www.debian.org
https://www.debian.org/security/2017/dsa-4050
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