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Fedora 33 : xen (2020-ec84c1565b)

medium Nessus Plugin ID 142839

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Synopsis

The remote Fedora host is missing a security update.

Description

revised patch for XSA-286 (mitigating performance impact)

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x86 PV guest INVLPG-like flushes may leave stale TLB entries [XSA-286, CVE-2020-27674] (#1891092) simplify grub scripts (patches from Thierry Vignaud <[email protected]>) some fixes for gcc 11

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-2020-ec84c1565b

Plugin Details

Severity: Medium

ID: 142839

File Name: fedora_2020-ec84c1565b.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/12/2020

Updated: 11/20/2020

Supported Sensors: Nessus Agent, Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-27674

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:xen, cpe:/o:fedoraproject:fedora:33

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/12/2020

Vulnerability Publication Date: 10/22/2020

Reference Information

CVE: CVE-2020-27674