openSUSE Security Update : xen (openSUSE-2018-766)

Medium Nessus Plugin ID 111418

Synopsis

The remote openSUSE host is missing a security update.

Description

This update for xen fixes the following issues :

Security issues fixed :

- CVE-2018-3665: Fix Lazy FP Save/Restore issue (XSA-267) (bsc#1095242).

- CVE-2018-12891: Fix possible Denial of Service (DoS) via certain PV MMU operations that affect the entire host (XSA-264) (bsc#1097521).

- CVE-2018-12892: Fix libxl to honour the readonly flag on HVM emulated SCSI disks (XSA-266) (bsc#1097523).

- CVE-2018-12893: Fix crash/Denial of Service (DoS) via safety check (XSA-265) (bsc#1097522).

Bug fixes :

- bsc#1027519: Add upstream patches from January.

- bsc#1098403: Fix regression introduced by changes for bsc#1079730. A PV domU without qcow2 and/or vfb has no qemu attached. Ignore QMP errors for PV domUs to handle PV domUs with and without an attached qemu-xen.

- bsc#1087289: Fix xen scheduler crash.

This update was imported from the SUSE:SLE-15:Update update project.

Solution

Update the affected xen packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1027519

https://bugzilla.opensuse.org/show_bug.cgi?id=1079730

https://bugzilla.opensuse.org/show_bug.cgi?id=1087289

https://bugzilla.opensuse.org/show_bug.cgi?id=1095242

https://bugzilla.opensuse.org/show_bug.cgi?id=1097521

https://bugzilla.opensuse.org/show_bug.cgi?id=1097522

https://bugzilla.opensuse.org/show_bug.cgi?id=1097523

https://bugzilla.opensuse.org/show_bug.cgi?id=1098403

Plugin Details

Severity: Medium

ID: 111418

File Name: openSUSE-2018-766.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2018/07/30

Modified: 2018/09/06

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS v3.0

Base Score: 9.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:xen, p-cpe:/a:novell:opensuse:xen-debugsource, p-cpe:/a:novell:opensuse:xen-devel, p-cpe:/a:novell:opensuse:xen-doc-html, p-cpe:/a:novell:opensuse:xen-libs, p-cpe:/a:novell:opensuse:xen-libs-32bit, p-cpe:/a:novell:opensuse:xen-libs-32bit-debuginfo, p-cpe:/a:novell:opensuse:xen-libs-debuginfo, p-cpe:/a:novell:opensuse:xen-tools, p-cpe:/a:novell:opensuse:xen-tools-debuginfo, p-cpe:/a:novell:opensuse:xen-tools-domU, p-cpe:/a:novell:opensuse:xen-tools-domU-debuginfo, cpe:/o:novell:opensuse:15.0

Required KB Items: Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list, Host/cpu

Patch Publication Date: 2018/07/28

Reference Information

CVE: CVE-2018-12891, CVE-2018-12892, CVE-2018-12893, CVE-2018-3665

IAVB: 2018-B-0094