Ubuntu 20.04 : libvirt vulnerability (USN-4452-1)

high Nessus Plugin ID 139372

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Trent Shea working with Trend Micro's Zero Day Initiative, discovered that the libvirt package set incorrect permissions on the UNIX domain socket. A local attacker could use this issue to access libvirt and escalate privileges.

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

Solution

Update the affected libvirt-daemon, libvirt-daemon-system and / or libvirt0 packages.

See Also

https://usn.ubuntu.com/4452-1/

Plugin Details

Severity: High

ID: 139372

File Name: ubuntu_USN-4452-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 8/6/2020

Updated: 11/17/2020

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libvirt-daemon, p-cpe:/a:canonical:ubuntu_linux:libvirt-daemon-system, p-cpe:/a:canonical:ubuntu_linux:libvirt0, cpe:/o:canonical:ubuntu_linux:20.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/4/2020

Vulnerability Publication Date: 11/6/2020

Reference Information

CVE: CVE-2020-15708

USN: 4452-1