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A xen security update has been released for openSUSE Leap 15.5 and SUSE Linux Enterprise.



SUSE-SU-2023:4475-1: important: Security update for xen


# Security update for xen

Announcement ID: SUSE-SU-2023:4475-1
Rating: important
References:

* bsc#1027519
* bsc#1215145
* bsc#1215474
* bsc#1215746
* bsc#1215747
* bsc#1215748
* bsc#1216654
* bsc#1216807

Cross-References:

* CVE-2023-20588
* CVE-2023-34322
* CVE-2023-34325
* CVE-2023-34326
* CVE-2023-34327
* CVE-2023-34328
* CVE-2023-46835
* CVE-2023-46836

CVSS scores:

* CVE-2023-20588 ( SUSE ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
* CVE-2023-20588 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
* CVE-2023-34322 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
* CVE-2023-34325 ( SUSE ): 5.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
* CVE-2023-34326 ( SUSE ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-34327 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-34328 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-46835 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected Products:

* Basesystem Module 15-SP5
* openSUSE Leap 15.5
* Server Applications Module 15-SP5
* SUSE Linux Enterprise Desktop 15 SP5
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise Micro 5.5
* SUSE Linux Enterprise Real Time 15 SP5
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves eight vulnerabilities can now be installed.

## 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.

## 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 15.5
zypper in -t patch SUSE-2023-4475=1 openSUSE-SLE-15.5-2023-4475=1

* SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2023-4475=1

* Basesystem Module 15-SP5
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2023-4475=1

* Server Applications Module 15-SP5
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP5-2023-4475=1

## Package List:

* openSUSE Leap 15.5 (aarch64 x86_64 i586)
* xen-libs-debuginfo-4.17.2_08-150500.3.15.1
* xen-debugsource-4.17.2_08-150500.3.15.1
* xen-libs-4.17.2_08-150500.3.15.1
* xen-tools-domU-debuginfo-4.17.2_08-150500.3.15.1
* xen-tools-domU-4.17.2_08-150500.3.15.1
* xen-devel-4.17.2_08-150500.3.15.1
* openSUSE Leap 15.5 (x86_64)
* xen-libs-32bit-debuginfo-4.17.2_08-150500.3.15.1
* xen-libs-32bit-4.17.2_08-150500.3.15.1
* openSUSE Leap 15.5 (aarch64 x86_64)
* xen-doc-html-4.17.2_08-150500.3.15.1
* xen-tools-4.17.2_08-150500.3.15.1
* xen-4.17.2_08-150500.3.15.1
* xen-tools-debuginfo-4.17.2_08-150500.3.15.1
* openSUSE Leap 15.5 (noarch)
* xen-tools-xendomains-wait-disk-4.17.2_08-150500.3.15.1
* openSUSE Leap 15.5 (aarch64_ilp32)
* xen-libs-64bit-debuginfo-4.17.2_08-150500.3.15.1
* xen-libs-64bit-4.17.2_08-150500.3.15.1
* SUSE Linux Enterprise Micro 5.5 (x86_64)
* xen-libs-4.17.2_08-150500.3.15.1
* xen-libs-debuginfo-4.17.2_08-150500.3.15.1
* xen-debugsource-4.17.2_08-150500.3.15.1
* Basesystem Module 15-SP5 (x86_64)
* xen-libs-debuginfo-4.17.2_08-150500.3.15.1
* xen-debugsource-4.17.2_08-150500.3.15.1
* xen-libs-4.17.2_08-150500.3.15.1
* xen-tools-domU-debuginfo-4.17.2_08-150500.3.15.1
* xen-tools-domU-4.17.2_08-150500.3.15.1
* Server Applications Module 15-SP5 (x86_64)
* xen-tools-4.17.2_08-150500.3.15.1
* xen-debugsource-4.17.2_08-150500.3.15.1
* xen-4.17.2_08-150500.3.15.1
* xen-tools-debuginfo-4.17.2_08-150500.3.15.1
* xen-devel-4.17.2_08-150500.3.15.1
* Server Applications Module 15-SP5 (noarch)
* xen-tools-xendomains-wait-disk-4.17.2_08-150500.3.15.1

## 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