High severity7.8NVD Advisory· Published Jan 23, 2017· Updated Jun 17, 2026
CVE-2016-9382
CVE-2016-9382
Description
Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
65cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:6.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:6.5:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*+ 39 more
- cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.2.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*
- (no CPE)range: 4.0.x - 4.7.x
- Range: 4.0.x - 4.7.x
- osv-coords20 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Manager%202.1pkg:rpm/suse/xen&distro=SUSE%20Manager%20Proxy%202.1pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%205
< 4.15.1_01-1.2+ 19 more
- (no CPE)range: < 4.15.1_01-1.2
- (no CPE)range: < 4.5.5_02-22.3.1
- (no CPE)range: < 4.7.1_02-25.1
- (no CPE)range: < 4.2.5_21-30.1
- (no CPE)range: < 4.1.6_08-32.1
- (no CPE)range: < 4.2.5_21-30.1
- (no CPE)range: < 4.4.4_10-43.5
- (no CPE)range: < 4.5.5_02-22.3.1
- (no CPE)range: < 4.7.1_02-25.1
- (no CPE)range: < 4.4.4_05-22.25.1
- (no CPE)range: < 4.4.4_10-43.5
- (no CPE)range: < 4.4.4_05-22.25.1
- (no CPE)range: < 4.5.5_02-22.3.1
- (no CPE)range: < 4.7.1_02-25.1
- (no CPE)range: < 4.4.4_10-43.5
- (no CPE)range: < 4.5.5_02-22.3.1
- (no CPE)range: < 4.7.1_02-25.1
- (no CPE)range: < 4.2.5_21-30.1
- (no CPE)range: < 4.2.5_21-30.1
- (no CPE)range: < 4.2.5_21-30.1
Patches
Vulnerability mechanics
References
5- xenbits.xen.org/xsa/advisory-192.htmlnvdPatchVendor Advisory
- support.citrix.com/article/CTX218775nvdPatchThird Party Advisory
- www.securityfocus.com/bid/94470nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1037341nvdThird Party AdvisoryVDB Entry
- security.gentoo.org/glsa/201612-56nvd
News mentions
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