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openSUSE Leap 15.3: 2022:0940-1 Important: Xen BHB Speculation

opensuse
Calendar Grey March 23, 2022
Dist Opensuse Esm H88
Important patch for openSUSE Leap 15.3 aimed at addressing significant xen vulnerabilities associated with transient execution side-channel assaults.
An update that solves three vulnerabilities and has one errata is now available

Description

This update for xen fixes the following issues:

Update Xen to version 4.14.4 (bsc#1027519)

Transient execution side-channel attacks attacking the Branch History

Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch

History Injection" are now mitigated.

Security issues fixed:

- CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: BHB speculation issues

(bsc#1196915).

Non-security issues fixed:

- Fixed issue around xl and virsh operation - virsh list not giving any

output (bsc#1191668).

Special Instructions and Notes:

Please reboot the system after installing this update.

Topics%20covered

Topics Covered

security advisory important attack mitigation xen openSUSE transient execution

Patch

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2022-940=1

Package List

- openSUSE Leap 15.3 (aarch64 x86_64):

xen-4.14.4_02-150300.3.21.1

xen-debugsource-4.14.4_02-150300.3.21.1

xen-devel-4.14.4_02-150300.3.21.1

xen-doc-html-4.14.4_02-150300.3.21.1

xen-libs-4.14.4_02-150300.3.21.1

xen-libs-debuginfo-4.14.4_02-150300.3.21.1

xen-tools-4.14.4_02-150300.3.21.1

xen-tools-debuginfo-4.14.4_02-150300.3.21.1

xen-tools-domU-4.14.4_02-150300.3.21.1

xen-tools-domU-debuginfo-4.14.4_02-150300.3.21.1

- openSUSE Leap 15.3 (x86_64):

xen-libs-32bit-4.14.4_02-150300.3.21.1

xen-libs-32bit-debuginfo-4.14.4_02-150300.3.21.1

- openSUSE Leap 15.3 (noarch):

xen-tools-xendomains-wait-disk-4.14.4_02-150300.3.21.1

References

https://www.suse.com/security/cve/CVE-2021-26401.html

https://www.suse.com/security/cve/CVE-2022-0001.html

https://www.suse.com/security/cve/CVE-2022-0002.html

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1191668

https://bugzilla.suse.com/1194267

https://bugzilla.suse.com/1196915

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2022:0940-1
Rating: important
Affected Products: openSUSE Leap 15.3 ble.

Topics%20covered

Topics Covered

security advisory important attack mitigation xen openSUSE transient execution

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