CVE-2015-7835
High
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.
SeverityHigh
CVSS7.2
Exploit probability—
ProductXen
PublishedOct 30, 2015
First seenOct 30, 2015
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xen xen | 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 | — |
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