Fedora 26 : xen (2017-16a414b3c5)

high Nessus Plugin ID 105511
New! Plugin Severity Now Using CVSS v3

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The remote Fedora host is missing a security update.


another patch related to the [XSA-240, CVE-2017-15595] issue xen:
various flaws (#1525018) x86 PV guests may gain access to internally used page [XSA-248] broken x86 shadow mode refcount overflow check [XSA-249] improper x86 shadow mode refcount error handling [XSA-250] improper bug check in x86 log-dirty handling [XSA-251]


xen: various flaws (#1518214) x86: infinite loop due to missing PoD error checking [XSA-246] Missing p2m error checking in PoD code [XSA-247]

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.


Update the affected xen package.

See Also


Plugin Details

Severity: High

ID: 105511

File Name: fedora_2017-16a414b3c5.nasl

Version: 3.6

Type: local

Agent: unix

Published: 1/3/2018

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: High

Score: 7.3


Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

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


Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:xen, cpe:/o:fedoraproject:fedora:26

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/2/2018

Vulnerability Publication Date: 10/18/2017

Reference Information

CVE: CVE-2017-15595, CVE-2017-17044, CVE-2017-17045, CVE-2017-17563, CVE-2017-17564, CVE-2017-17565, CVE-2017-17566