Ubuntu 20.04 LTS : Varnish Cache regression (USN-5474-2)

high Nessus Plugin ID 164377

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5474-2 advisory.

- An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss. (CVE-2020-11653)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libvarnishapi-dev, libvarnishapi2 and / or varnish packages.

Plugin Details

Severity: High

ID: 164377

File Name: ubuntu_USN-5474-2.nasl

Version: 1.4

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 8/24/2022

Updated: 7/12/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-11653

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libvarnishapi-dev, p-cpe:/a:canonical:ubuntu_linux:libvarnishapi2, p-cpe:/a:canonical:ubuntu_linux:varnish

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/23/2022

Vulnerability Publication Date: 4/8/2020

Reference Information

CVE: CVE-2020-11653

USN: 5474-2

Detections

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