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SUSE SLES12 Security Update : xen (SUSE-SU-2020:1630-1)
high Nessus Plugin ID 137624
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Synopsis
The remote SUSE host is missing one or more security updates.Description
This update for xen fixes the following issues :CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1172205).
CVE-2020-11742: Bad continuation handling in GNTTABOP_copy (bsc#1169392).
CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues (bsc#1168140).
CVE-2020-11739: Missing memory barriers in read-write unlock paths (bsc#1168142).
CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest, leading to a guest denial of service (bsc#1158004 XSA-308).
CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307).
CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310).
CVE-2019-19579: Fixed a privilege escalation where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).
CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309).
CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311).
Xenstored Crashed during VM install (bsc#1167152)
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
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 :
SUSE OpenStack Cloud Crowbar 8 :
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-1630=1
SUSE OpenStack Cloud 8 :
zypper in -t patch SUSE-OpenStack-Cloud-8-2020-1630=1
SUSE Linux Enterprise Server for SAP 12-SP3 :
zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-1630=1
SUSE Linux Enterprise Server 12-SP3-LTSS :
zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-1630=1
SUSE Linux Enterprise Server 12-SP3-BCL :
zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-1630=1
SUSE Enterprise Storage 5 :
zypper in -t patch SUSE-Storage-5-2020-1630=1
HPE Helion Openstack 8 :
zypper in -t patch HPE-Helion-OpenStack-8-2020-1630=1
See Also
https://bugzilla.suse.com/show_bug.cgi?id=1157888
https://bugzilla.suse.com/show_bug.cgi?id=1158003
https://bugzilla.suse.com/show_bug.cgi?id=1158004
https://bugzilla.suse.com/show_bug.cgi?id=1158005
https://bugzilla.suse.com/show_bug.cgi?id=1158006
https://bugzilla.suse.com/show_bug.cgi?id=1158007
https://bugzilla.suse.com/show_bug.cgi?id=1161181
https://bugzilla.suse.com/show_bug.cgi?id=1167152
https://bugzilla.suse.com/show_bug.cgi?id=1168140
https://bugzilla.suse.com/show_bug.cgi?id=1168142
https://bugzilla.suse.com/show_bug.cgi?id=1169392
https://bugzilla.suse.com/show_bug.cgi?id=1172205
https://www.suse.com/security/cve/CVE-2019-19577/
https://www.suse.com/security/cve/CVE-2019-19578/
https://www.suse.com/security/cve/CVE-2019-19579/
https://www.suse.com/security/cve/CVE-2019-19580/
https://www.suse.com/security/cve/CVE-2019-19581/
https://www.suse.com/security/cve/CVE-2019-19583/
https://www.suse.com/security/cve/CVE-2020-0543/
https://www.suse.com/security/cve/CVE-2020-11739/
https://www.suse.com/security/cve/CVE-2020-11740/
https://www.suse.com/security/cve/CVE-2020-11741/
https://www.suse.com/security/cve/CVE-2020-11742/
Plugin Details
Severity: High
ID: 137624
File Name: suse_SU-2020-1630-1.nasl
Version: 1.4
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 6/18/2020
Updated: 5/13/2022
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2019-19579
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2020-11741
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-domu-debuginfo, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:xen-tools-domu, p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-doc-html
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 6/16/2020
Vulnerability Publication Date: 12/4/2019
Reference Information
CVE: CVE-2019-19577, CVE-2019-19578, CVE-2019-19579, CVE-2019-19580, CVE-2019-19581, CVE-2019-19583, CVE-2020-0543, CVE-2020-11739, CVE-2020-11740, CVE-2020-11741, CVE-2020-11742, CVE-2020-7211