Unrated severityNVD Advisory· Published Oct 30, 2015· Updated Jun 17, 2026
CVE-2015-7835
CVE-2015-7835
Description
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
50cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*+ 30 more
- cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*
- 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:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.3.4:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
- (no CPE)range: 3.4 through 4.6.x
- osv-coords19 versionspkg:rpm/opensuse/xen&distro=openSUSE%20Tumbleweedpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP2-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP3pkg: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%20Software%20Development%20Kit%2011%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 4.7.0_12-1.3+ 18 more
- (no CPE)range: < 4.7.0_12-1.3
- (no CPE)range: < 4.2.5_14-18.2
- (no CPE)range: < 4.4.3_02-26.2
- (no CPE)range: < 4.4.3_02-22.12.1
- (no CPE)range: < 4.5.2_02-4.1
- (no CPE)range: < 4.1.6_08-20.1
- (no CPE)range: < 4.2.5_14-18.2
- (no CPE)range: < 4.2.5_14-18.2
- (no CPE)range: < 4.4.3_02-26.2
- (no CPE)range: < 4.4.3_02-22.12.1
- (no CPE)range: < 4.5.2_02-4.1
- (no CPE)range: < 4.2.5_14-18.2
- (no CPE)range: < 4.4.3_02-26.2
- (no CPE)range: < 4.4.3_02-22.12.1
- (no CPE)range: < 4.5.2_02-4.1
- (no CPE)range: < 4.2.5_14-18.2
- (no CPE)range: < 4.4.3_02-26.2
- (no CPE)range: < 4.4.3_02-22.12.1
- (no CPE)range: < 4.5.2_02-4.1
Patches
Vulnerability mechanics
References
12- xenbits.xen.org/xsa/advisory-148.htmlnvdVendor Advisory
- github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txtnvdVendor Advisory
- lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.htmlnvd
- lists.opensuse.org/opensuse-updates/2015-11/msg00063.htmlnvd
- lists.opensuse.org/opensuse-updates/2015-12/msg00053.htmlnvd
- support.citrix.com/article/CTX202404nvd
- www.debian.org/security/2015/dsa-3390nvd
- www.securityfocus.com/bid/77366nvd
- www.securitytracker.com/id/1034032nvd
- security.gentoo.org/glsa/201604-03nvd
News mentions
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