SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:3915-1)

high Nessus Plugin ID 144580

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New! Plugin Severity Now Using CVSS v3

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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-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).

CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322).

CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).

CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324).

CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).

CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).

CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).

Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).

Multiple other bugs (bsc#1027519)

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 Module for Server Applications 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2020-3915=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-3915=1

See Also

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

https://bugzilla.suse.com/show_bug.cgi?id=1176782

https://bugzilla.suse.com/show_bug.cgi?id=1179496

https://bugzilla.suse.com/show_bug.cgi?id=1179498

https://bugzilla.suse.com/show_bug.cgi?id=1179501

https://bugzilla.suse.com/show_bug.cgi?id=1179502

https://bugzilla.suse.com/show_bug.cgi?id=1179506

https://bugzilla.suse.com/show_bug.cgi?id=1179514

https://bugzilla.suse.com/show_bug.cgi?id=1179516

https://www.suse.com/security/cve/CVE-2020-29480/

https://www.suse.com/security/cve/CVE-2020-29481/

https://www.suse.com/security/cve/CVE-2020-29483/

https://www.suse.com/security/cve/CVE-2020-29484/

https://www.suse.com/security/cve/CVE-2020-29566/

https://www.suse.com/security/cve/CVE-2020-29570/

https://www.suse.com/security/cve/CVE-2020-29571/

http://www.nessus.org/u?86ca6431

Plugin Details

Severity: High

ID: 144580

File Name: suse_SU-2020-3915-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 12/23/2020

Updated: 6/3/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-29481

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-devel, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools-domU, p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo, cpe:/o:novell:suse_linux:15

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: 12/22/2020

Vulnerability Publication Date: 12/15/2020

Reference Information

CVE: CVE-2020-29480, CVE-2020-29481, CVE-2020-29483, CVE-2020-29484, CVE-2020-29566, CVE-2020-29570, CVE-2020-29571

IAVB: 2020-B-0077-S