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Status published
High
CVE-2015-7835
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://support.citrix.com/article/CTX202404
- http://www.securityfocus.com/bid/77366
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://xenbits.xen.org/xsa/advisory-148.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt
- http://www.debian.org/security/2015/dsa-3390
- http://www.securitytracker.com/id/1034032
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- https://security.gentoo.org/glsa/201604-03
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Affected Vendor
Affected Software
xen
Vulnerable Versions:
3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.1.6.1, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1, 4.3.2, 4.3.4, 4.4.0, 4.4.1, 4.5.0, 4.5.1, 4.6.0
Timeline
Official Publish:
October 30th, 2015
Last Modified:
August 6th, 2024
Added to House:
July 19th, 2026
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.