Release Date: | 2015-10-29 |
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.xdoes not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
See more information about CVE-2015-7835 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
Base Score: | 7.1 | Base Metrics: | AV:N/AC:H/Au:S/C:C/I:C/A:C |
Access Vector: | Network | Attack Complexity: | High |
Authentication: | Requires single instance | Confidentiality Impact: | Complete |
Integrity Impact: | Complete | Availability Impact: | Complete |
Platform | Errata | Release Date |
Oracle VM version 2.2 (xen) | OVMSA-2015-0151 | 2015-12-07 |
Oracle VM version 3.2 (xen) | OVMSA-2015-0142 | 2015-10-29 |
Oracle VM version 3.2 (xen) | OVMSA-2015-0143 | 2015-11-06 |
Oracle VM version 3.3 (xen) | OVMSA-2015-0141 | 2015-10-29 |
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