What is CVE-2016-6259?

CVE-2016-6259 is a medium-severity vulnerability in Citrix Xenserver, classified under Improper Input Validation. CVSS score: 6.2/10. Published 2016-08-02.

How severe is CVE-2016-6259?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Improper input validation in Citrix Xenserver

CVE-2016-6259

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (50.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Citrix Xenserver — versions 6.0, 6.0.2, 6.1
Xen — versions 4.5.0, 4.5.1, 4.5.2
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

92130 (Third Party Advisory, vdb-entry, x_refsource_BID)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
1036447 (Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
cve@mitre.org (x_refsource_CONFIRM, Patch, Mitigation)
cve@mitre.org (x_refsource_CONFIRM, Patch, Mailing List)
cve@mitre.org (x_refsource_CONFIRM, Patch, Mitigation)

Frequently asked questions

What is CVE-2016-6259?: CVE-2016-6259 is a medium-severity vulnerability in Citrix Xenserver, classified under Improper Input Validation. CVSS score: 6.2/10. Published 2016-08-02.
How severe is CVE-2016-6259?: Medium severity. CVSS v3 base score is 6.2 out of 10.