CVE-2015-7835 — Vulnetix

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CVE-2015-7835 PUBLISHED

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.

EPSS 0.10% · 26.6th percentile

Risk Scores

EPSS Score

0.10%

26.6th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:14.04:LTS	xen	0, 4.3.0-1ubuntu1, 4.3.0-1ubuntu2

Timeline

Oct 30, 2015 CVE Published
Feb 4, 2022 EPSS Score
Mar 28, 2022 EPSS Score
May 19, 2022 EPSS Score
Jul 10, 2022 EPSS Score
Sep 1, 2022 EPSS Score
Oct 23, 2022 EPSS Score
Dec 14, 2022 EPSS Score
Feb 4, 2023 EPSS Score
Mar 7, 2023 EPSS Score
Mar 28, 2023 EPSS Score
May 19, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2015-7835 third-party-advisory
http://xenbits.xen.org/xsa/advisory-148.html third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2015-7835 third-party-advisory

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