CVE-2020-27674

Published: Oct 22, 2020

Modified: Aug 4, 2024

PUBLISHED

Description

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://xenbits.xen.org/xsa/advisory-286.html

x_refsource_MISC

GLSA-202011-06

vendor-advisory

x_refsource_GENTOO

FEDORA-2020-5398bfb466

vendor-advisory

x_refsource_FEDORA

FEDORA-2020-ec84c1565b

vendor-advisory

x_refsource_FEDORA

FEDORA-2020-6dd36a716c

vendor-advisory

x_refsource_FEDORA

DSA-4804

vendor-advisory

x_refsource_DEBIAN

[oss-security] 20210119 Xen Security Advisory 286 v6 (CVE-2020-27674) - x86 PV guest INVLPG-like flushes may leave stale TLB entries

mailing-list

x_refsource_MLIST

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CVE-2020-27674

Description

Affected Products

References