CVE-2015-7835
Not scored
CVE-2015-7835
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.
Exploit probability
0.4%
Published
October 30, 2015
Required by
Not available
Last source change
April 16, 2026
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2015-7835
View original source
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.
05 / REFERENCES
Further evidence
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
- http://support.citrix.com/article/CTX202404
- http://www.debian.org/security/2015/dsa-3390
- http://www.securityfocus.com/bid/77366
- http://www.securitytracker.com/id/1034032
- http://xenbits.xen.org/xsa/advisory-148.html
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt
- https://security.gentoo.org/glsa/201604-03