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CVE-2016-6259

🗓️ 02 Aug 2016 16:59:09Reported by [email protected]Type 
nvd
 nvd🔗 web.nvd.nist.gov👁 17 Views

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 by triggering a safety check

Related
Detection
Refs
ReporterTitlePublishedViews
Family
FreeBSD		xen-kernel -- x86: Missing SMAP whitelisting in 32-bit exception / event delivery
26 Jul 201600:00
–freebsd
Tenable Nessus		Citrix XenServer Multiple Vulnerabilities (CTX214954) (Bunker Buster)
4 Aug 201600:00
–nessus
Tenable Nessus		Fedora 23 : xen (2016-0049aa6e5d) (Bunker Buster)
9 Aug 201600:00
–nessus
Tenable Nessus		Fedora 24 : xen (2016-01cc766201) (Bunker Buster)
8 Aug 201600:00
–nessus
Tenable Nessus		FreeBSD : xen-kernel -- x86: Missing SMAP whitelisting in 32-bit exception / event delivery (04cf89e3-5854-11e6-b334-002590263bf5)
2 Aug 201600:00
–nessus
Tenable Nessus		openSUSE Security Update : xen (openSUSE-2016-1170) (Bunker Buster)
12 Oct 201600:00
–nessus
Tenable Nessus		RHEL 5 : xsa183_xen (Unpatched Vulnerability)
11 May 202400:00
–nessus
Tenable Nessus		RHEL 5 : xen (Unpatched Vulnerability)
3 Jun 202400:00
–nessus
Tenable Nessus		SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:2093-1) (Bunker Buster)
2 Sep 201600:00
–nessus
Tenable Nessus		SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:2473-1) (Bunker Buster)
10 Oct 201600:00
–nessus
Rows per page
NVD
Node
xenxenMatch4.5.0
OR
xenxenMatch4.5.1
OR
xenxenMatch4.5.2
OR
xenxenMatch4.5.3
OR
xenxenMatch4.6.0
OR
xenxenMatch4.6.1
OR
xenxenMatch4.6.3
OR
xenxenMatch4.7.0
Node
citrixxenserverMatch6.0
OR
citrixxenserverMatch6.0.2
OR
citrixxenserverMatch6.1
OR
citrixxenserverMatch6.2.0sp1
OR
citrixxenserverMatch6.5.0sp1
OR
citrixxenserverMatch7.0

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17 Jun 2026 00:50Current
6.4Medium risk
Vulners AI Score6.4
CVSS 24.9
CVSS 36.2
EPSS0.00639
CWE-20
xensupervisor mode access prevention32-bitdenial of servicesafety check
17