Fedora 27 : xen (2018-1a467757ce)

Medium Nessus Plugin ID 111236

Synopsis

The remote Fedora host is missing a security update.

Description

preemption checks bypassed in x86 PV MM handling [XSA-264, CVE-2018-12891] x86: #DB exception safety check can be triggered by a guest [XSA-265, CVE-2018-12893] libxl fails to honour readonly flag on HVM emulated SCSI disks [XSA-266, CVE-2018-12892]

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Speculative register leakage from lazy FPU context switching [XSA-267, CVE-2018-3665] fix for change in iasl output

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected xen package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2018-1a467757ce

Plugin Details

Severity: Medium

ID: 111236

File Name: fedora_2018-1a467757ce.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/07/24

Modified: 2018/09/05

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.5

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

CVSSv3

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:fedoraproject:fedora:xen, cpe:/o:fedoraproject:fedora:27

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

Patch Publication Date: 2018/07/13

Reference Information

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