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CVE
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CVE-2015-7835Date: (C)2015-12-15   (M)2024-02-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 7.2
Exploit Score: 3.9
Impact Score: 10.0
 
CVSS V2 Metrics:
Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality: COMPLETE
Integrity: COMPLETE
Availability: COMPLETE
  
Reference:
SECTRACK-1034032
BID-77366
DSA-3390
FEDORA-2015-242be2c240
FEDORA-2015-6f6b79efe2
FEDORA-2015-a931b02be2
GLSA-201604-03
http://support.citrix.com/article/CTX202404
http://xenbits.xen.org/xsa/advisory-148.html
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt
openSUSE-SU-2015:1965
openSUSE-SU-2015:2250

CPE    28
cpe:/o:xen:xen:4.1.6.1
cpe:/o:xen:xen:4.0.1
cpe:/o:xen:xen:4.1.0
cpe:/o:xen:xen:4.0.0
...
CWE    1
CWE-264
OVAL    6
oval:org.secpod.oval:def:89045440
oval:org.secpod.oval:def:109893
oval:org.secpod.oval:def:109722
oval:org.secpod.oval:def:109702
...

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