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openSUSE: 2023:4476-1 urgent: Critical AMD Xen Execution Vulnerability

opensuse
Calendar Grey November 17, 2023
Scroller Opensuse
This critical security notification for openSUSE highlights various vulnerabilities in xen, encompassing an execution flaw in AMD processors.
This update for xen fixes the following issues: CVE-2023-20588: AMD CPU transitional execution leak via division by zero (XSA-439) (bsc#1215474).

Description

This update for xen fixes the following issues:

* CVE-2023-20588: AMD CPU transitional execution leak via division by zero

(XSA-439) (bsc#1215474).

* CVE-2023-34322: top-level shadow reference dropped too early for 64-bit PV

guests (XSA-438) (bsc#1215145).

* CVE-2023-34325: Multiple vulnerabilities in libfsimage disk handling

(XSA-443) (bsc#1215747).

* CVE-2023-34326: x86/AMD: missing IOMMU TLB flushing (XSA-442) (bsc#1215746).

* CVE-2023-34327,CVE-2023-34328: x86/AMD: Debug Mask handling (XSA-444)

(bsc#1215748).

* CVE-2023-46835: x86/AMD: mismatch in IOMMU quarantine page table levels

(XSA-445) (bsc#1216654).

* CVE-2023-46836: x86: BTC/SRSO fixes not fully effective (XSA-446)

(bsc#1216807).

* Upstream bug fixes (bsc#1027519)

## Special Instructions and Notes:

* Please reboot the system after installing this update.

Topics%20covered

Topics Covered

security advisory critical issue important system update SUSE xen openSUSE AMD xen patch execution leak AMD exploit

Patch

## Patch Instructions:

To install this SUSE 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 15.4

zypper in -t patch openSUSE-SLE-15.4-2023-4476=1 SUSE-2023-4476=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2023-4476=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2023-4476=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2023-4476=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2023-4476=1

* Basesystem Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-4476=1

* Server Applications Module 15-SP4

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2023-4476=1

* openSUSE Leap Micro 5.3

zypper in -t patch openSUSE-Leap-Micro-5.3-2023-4476=1

* openSUSE Leap Micro 5.4

zypper in -t patch openSUSE-Leap-Micro-5.4-2023-4476=1

Package List

* openSUSE Leap 15.4 (aarch64 x86_64)

* xen-tools-4.16.5_08-150400.4.40.1

* xen-tools-debuginfo-4.16.5_08-150400.4.40.1

* xen-4.16.5_08-150400.4.40.1

* xen-doc-html-4.16.5_08-150400.4.40.1

* openSUSE Leap 15.4 (aarch64 x86_64 i586)

* xen-tools-domU-4.16.5_08-150400.4.40.1

* xen-libs-4.16.5_08-150400.4.40.1

* xen-libs-debuginfo-4.16.5_08-150400.4.40.1

* xen-tools-domU-debuginfo-4.16.5_08-150400.4.40.1

* xen-debugsource-4.16.5_08-150400.4.40.1

* xen-devel-4.16.5_08-150400.4.40.1

* openSUSE Leap 15.4 (x86_64)

* xen-libs-32bit-4.16.5_08-150400.4.40.1

* xen-libs-32bit-debuginfo-4.16.5_08-150400.4.40.1

* openSUSE Leap 15.4 (noarch)

* xen-tools-xendomains-wait-disk-4.16.5_08-150400.4.40.1

* openSUSE Leap 15.4 (aarch64_ilp32)

* xen-libs-64bit-debuginfo-4.16.5_08-150400.4.40.1

* xen-libs-64bit-4.16.5_08-150400.4.40.1

* SUSE Linux Enterprise Micro for Rancher 5.3 (x86_64)

* xen-libs-4.16.5_08-150400.4.40.1

* xen-libs-debuginfo-4.16.5_08-150400.4.40.1

* xen-debugsource-4.16.5_08-150400.4.40.1

* SUSE Linux Enterprise...

Read the Full Advisory

References

* bsc#1027519

* bsc#1215145

* bsc#1215474

* bsc#1215746

* bsc#1215747

* bsc#1215748

* bsc#1216654

* bsc#1216807

## References:

* https://www.suse.com/security/cve/CVE-2023-20588.html

* https://www.suse.com/security/cve/CVE-2023-34322.html

* https://www.suse.com/security/cve/CVE-2023-34325.html

* https://www.suse.com/security/cve/CVE-2023-34326.html

* https://www.suse.com/security/cve/CVE-2023-34327.html

* https://www.suse.com/security/cve/CVE-2023-34328.html

* https://www.suse.com/security/cve/CVE-2023-46835.html

* https://www.suse.com/security/cve/CVE-2023-46836.html

* https://bugzilla.suse.com/show_bug.cgi?id=1027519

* https://bugzilla.suse.com/show_bug.cgi?id=1215145

* https://bugzilla.suse.com/show_bug.cgi?id=1215474

* https://bugzilla.suse.com/show_bug.cgi?id=1215746

* https://bugzilla.suse.com/show_bug.cgi?id=1215747

* https://bugzilla.suse.com/show_bug.cgi?id=1215748

* https://bugzilla.suse.com/show_bug.cgi?id=1216654

* https://bugzilla.suse.com/show_bug.cgi?id=1216807

Severity
critical
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2023:4476-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical issue important system update SUSE xen openSUSE AMD xen patch execution leak AMD exploit

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