High severity7.8NVD Advisory· Published Dec 8, 2018· Updated Jun 17, 2026
CVE-2018-19961
CVE-2018-19961
Description
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
31cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:7.1:cu1:*:*:ltsr:*:*:*
- cpe:2.3:a:citrix:xenserver:7.5:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:xenserver:7.6:*:*:*:*:*:*:*
- Range: <=4.11.x
- osv-coords23 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg: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%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%207
< 4.15.1_01-1.2+ 22 more
- (no CPE)range: < 4.15.1_01-1.2
- (no CPE)range: < 4.7.6_05-43.45.1
- (no CPE)range: < 4.9.3_03-3.47.1
- (no CPE)range: < 4.11.1_02-2.3.1
- (no CPE)range: < 4.10.2_04-3.9.1
- (no CPE)range: < 4.10.2_04-3.9.1
- (no CPE)range: < 4.2.5_21-45.30.1
- (no CPE)range: < 4.4.4_38-61.40.1
- (no CPE)range: < 4.5.5_28-22.58.1
- (no CPE)range: < 4.7.6_05-43.45.1
- (no CPE)range: < 4.7.6_05-43.45.1
- (no CPE)range: < 4.9.3_03-3.47.1
- (no CPE)range: < 4.11.1_02-2.3.1
- (no CPE)range: < 4.4.4_40-22.77.1
- (no CPE)range: < 4.4.4_38-61.40.1
- (no CPE)range: < 4.5.5_28-22.58.1
- (no CPE)range: < 4.7.6_05-43.45.1
- (no CPE)range: < 4.9.3_03-3.47.1
- (no CPE)range: < 4.11.1_02-2.3.1
- (no CPE)range: < 4.4.4_38-61.40.1
- (no CPE)range: < 4.9.3_03-3.47.1
- (no CPE)range: < 4.11.1_02-2.3.1
- (no CPE)range: < 4.7.6_05-43.45.1
Patches
Vulnerability mechanics
References
7- xenbits.xen.org/xsa/advisory-275.htmlnvdPatchVendor Advisory
- www.securityfocus.com/bid/106182nvdThird Party AdvisoryVDB Entry
- support.citrix.com/article/CTX239432nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4369nvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.htmlnvd
- lists.debian.org/debian-lts-announce/2019/10/msg00008.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/nvd
News mentions
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