vulnerability

Alpine Linux: CVE-2022-33745: Vulnerability in Multiple Components

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Jul 26, 2022
Added
Mar 26, 2024
Modified
Jan 5, 2026

Description

insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.

Solution

alpine-linux-upgrade-xen
Title
NEW

Explore Exposure Command

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