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SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:3310-1)
high Nessus Plugin ID 132092
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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-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307).
CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to bitmaps with a compile time known size of 64 (bsc#1158003 XSA-307).
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-2019-19578: 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-2019-19580: 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-2019-19577: 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).
CVE-2019-19579: Fixed a privilege escaltion where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).
CVE-2019-18423: A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). (bsc#1154460).
CVE-2019-18424: An untrusted domain with access to a physical device can DMA into host memory, leading to privilege escalation.
(bsc#1154461).
CVE-2019-18422: A malicious ARM guest might contrive to arrange for critical Xen code to run with interrupts erroneously enabled. This could lead to data corruption, denial of service, or possibly even privilege escalation. However a precise attack technique has not been identified. (bsc#1154464)
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 Linux Enterprise Software Development Kit 12-SP4:zypper in -t patch SUSE-SLE-SDK-12-SP4-2019-3310=1
SUSE Linux Enterprise Server 12-SP4:zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3310=1
SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-3310=1
See Also
https://bugzilla.suse.com/show_bug.cgi?id=1154460
https://bugzilla.suse.com/show_bug.cgi?id=1154461
https://bugzilla.suse.com/show_bug.cgi?id=1154464
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://www.suse.com/security/cve/CVE-2019-18422/
https://www.suse.com/security/cve/CVE-2019-18423/
https://www.suse.com/security/cve/CVE-2019-18424/
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-2019-19582/
Plugin Details
Severity: High
ID: 132092
File Name: suse_SU-2019-3310-1.nasl
Version: 1.5
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 12/17/2019
Updated: 5/18/2022
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: 8.5
Temporal Score: 6.3
Vector: CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2019-18423
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-2019-19578
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: 12/16/2019
Vulnerability Publication Date: 10/31/2019
Reference Information
CVE: CVE-2019-18422, CVE-2019-18423, CVE-2019-18424, CVE-2019-19577, CVE-2019-19578, CVE-2019-19579, CVE-2019-19580, CVE-2019-19581, CVE-2019-19582, CVE-2019-19583
IAVB: 2019-B-0091-S