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ZMCIRT Vulnerability Bulletin
ZMC-2021.09.07.1700
xen: Multiple vulnerabilities
7th Sep 2021
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Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Unauthorised Access -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-28699 CVE-2021-28698 CVE-2021-28697
CVE-2021-28696 CVE-2021-28695 CVE-2021-28694
CVE-2021-28692 CVE-2021-28690 CVE-2021-20255
CVE-2021-3595 CVE-2021-3594 CVE-2021-3592
CVE-2021-0089
Reference: ESB-2021.2987
ESB-2021.2970
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20212957-1
- --------------------------BEGIN INCLUDED TEXT--------------------
SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2957-1
Rating: important
References: #1182654 #1186429 #1186433 #1186434 #1187369 #1187376
#1187378 #1189373 #1189376 #1189378 #1189380 #1189882
Cross-References: CVE-2021-0089 CVE-2021-20255 CVE-2021-28690 CVE-2021-28692
CVE-2021-28694 CVE-2021-28695 CVE-2021-28696 CVE-2021-28697
CVE-2021-28698 CVE-2021-28699 CVE-2021-3592 CVE-2021-3594
CVE-2021-3595
Affected Products:
SUSE OpenStack Cloud Crowbar 8
SUSE OpenStack Cloud 8
SUSE Linux Enterprise Server for SAP 12-SP3
SUSE Linux Enterprise Server 12-SP3-LTSS
SUSE Linux Enterprise Server 12-SP3-BCL
HPE Helion Openstack 8
______________________________________________________________________________
An update that fixes 13 vulnerabilities is now available.
Description:
This update for xen fixes the following issues:
o CVE-2021-3594: slirp: invalid pointer initialization may lead to
information disclosure (udp)(bsc#1187378).
o CVE-2021-3595: slirp: invalid pointer initialization may lead to
information disclosure (tftp)(bsc#1187376).
o CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#
1189378).
o CVE-2021-28699: inadequate grant-v2 status frames array bounds check
(XSA-382)(bsc#1189380).
o CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100
(bsc#1182654)
o CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3
(bsc#1186434)
o CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling
(bsc#1186429)
o CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on
x86 (XSA-378)(bsc#1189373).
o CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433)
o CVE-2021-28697: grant table v2 status pages may remain accessible after
de-allocation (XSA-379)(bsc#1189376).
o CVE-2021-3592: slirp: invalid pointer initialization may lead to
information disclosure (bootp)(bsc#1187369).
o Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#
1189882).
Patch Instructions:
To install this SUSE 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:
o SUSE OpenStack Cloud Crowbar 8:
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2021-2957=1
o SUSE OpenStack Cloud 8:
zypper in -t patch SUSE-OpenStack-Cloud-8-2021-2957=1
o SUSE Linux Enterprise Server for SAP 12-SP3:
zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-2957=1
o SUSE Linux Enterprise Server 12-SP3-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-2957=1
o SUSE Linux Enterprise Server 12-SP3-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2021-2957=1
o HPE Helion Openstack 8:
zypper in -t patch HPE-Helion-OpenStack-8-2021-2957=1
Package List:
o SUSE OpenStack Cloud Crowbar 8 (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
o SUSE OpenStack Cloud 8 (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
o SUSE Linux Enterprise Server for SAP 12-SP3 (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
o SUSE Linux Enterprise Server 12-SP3-LTSS (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
o SUSE Linux Enterprise Server 12-SP3-BCL (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
o HPE Helion Openstack 8 (x86_64):
xen-4.9.4_20-3.91.1
xen-debugsource-4.9.4_20-3.91.1
xen-doc-html-4.9.4_20-3.91.1
xen-libs-32bit-4.9.4_20-3.91.1
xen-libs-4.9.4_20-3.91.1
xen-libs-debuginfo-32bit-4.9.4_20-3.91.1
xen-libs-debuginfo-4.9.4_20-3.91.1
xen-tools-4.9.4_20-3.91.1
xen-tools-debuginfo-4.9.4_20-3.91.1
xen-tools-domU-4.9.4_20-3.91.1
xen-tools-domU-debuginfo-4.9.4_20-3.91.1
References:
o https://www.suse.com/security/cve/CVE-2021-0089.html
o https://www.suse.com/security/cve/CVE-2021-20255.html
o https://www.suse.com/security/cve/CVE-2021-28690.html
o https://www.suse.com/security/cve/CVE-2021-28692.html
o https://www.suse.com/security/cve/CVE-2021-28694.html
o https://www.suse.com/security/cve/CVE-2021-28695.html
o https://www.suse.com/security/cve/CVE-2021-28696.html
o https://www.suse.com/security/cve/CVE-2021-28697.html
o https://www.suse.com/security/cve/CVE-2021-28698.html
o https://www.suse.com/security/cve/CVE-2021-28699.html
o https://www.suse.com/security/cve/CVE-2021-3592.html
o https://www.suse.com/security/cve/CVE-2021-3594.html
o https://www.suse.com/security/cve/CVE-2021-3595.html
o https://bugzilla.suse.com/1182654
o https://bugzilla.suse.com/1186429
o https://bugzilla.suse.com/1186433
o https://bugzilla.suse.com/1186434
o https://bugzilla.suse.com/1187369
o https://bugzilla.suse.com/1187376
o https://bugzilla.suse.com/1187378
o https://bugzilla.suse.com/1189373
o https://bugzilla.suse.com/1189376
o https://bugzilla.suse.com/1189378
o https://bugzilla.suse.com/1189380
ZMCIRT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. ZMCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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