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OpenAdvisories
Unscored CVE-2021-46744 EUVD-2021-33400GHSA-4mvg-3c82-rv73

An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext…

Published May 11, 2022 · Updated Sep 16, 2024 · Assigned by AMD

Vendor: AMD Product: AMD Processors

Description

An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.

Affected products

VendorProductAffectedFixed
AMD AMD Processors Processor EPYC —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP4 kernel-firmware 20220509-150400.4.5.1 SUSE-SU-2022:1923-1
SLES 15 SP3 kernel-firmware 20210208-150300.4.10.1 SUSE-SU-2022:1840-1
SLES 15 SP2 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLES 15 SP1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLES 15 kernel-firmware 20191118-150000.3.42.1 SUSE-SU-2022:1847-1
Show 19 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP5 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SLES 12 SP4 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SLES for SAP 15 SP2 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLES for SAP 15 SP1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLES for SAP 15 kernel-firmware 20191118-150000.3.42.1 SUSE-SU-2022:1847-1
SLES for SAP 12 SP5 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SLES for SAP 12 SP4 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SLE Micro 5.2 kernel-firmware 20210208-150300.4.10.1 SUSE-SU-2022:1840-1
SLE Micro 5.1 kernel-firmware 20210208-150300.4.10.1 SUSE-SU-2022:1840-1
SLE HPC 15 SP2 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLE HPC 15 SP1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SLE HPC 15 kernel-firmware 20191118-150000.3.42.1 SUSE-SU-2022:1847-1
SUSE OpenStack Cloud Crowbar 9 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SUSE OpenStack Cloud 9 kernel-firmware 20190618-5.25.2 SUSE-SU-2022:1846-1
SUSE Manager Server 4.1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SUSE Manager Retail Branch Server 4.1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SUSE Manager Proxy 4.1 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SUSE Enterprise Storage 7 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1
SUSE Enterprise Storage 6 kernel-firmware 20200107-150100.3.31.1 SUSE-SU-2022:1751-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed kernel-firmware 20220516-1.1 openSUSE-SU-2024:12088-1
openSUSE Tumbleweed kernel-firmware-bluetooth 20250208-1.1 openSUSE-SU-2025:14774-1
openSUSE Tumbleweed kernel-firmware-i915 +1 20250210-1.1 openSUSE-SU-2025:14798-1, openSUSE-SU-2025:14779-1
openSUSE Tumbleweed kernel-firmware-ti +30 20250206-1.1 openSUSE-SU-2025:14804-1, openSUSE-SU-2025:14801-1, openSUSE-SU-2025:14800-1
openSUSE Leap 15.4 kernel-firmware 20220509-150400.4.5.1 SUSE-SU-2022:1923-1
openSUSE Leap 15.3 kernel-firmware 20210208-150300.4.10.1 SUSE-SU-2022:1840-1

Advisories 41

References