Debian dla-3208 : libvarnishapi-dev - security update

high Nessus Plugin ID 168207

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3208 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3208-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany November 27, 2022 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : varnish Version : 6.1.1-1+deb10u4 CVE ID : CVE-2020-11653 CVE-2022-45060 Debian Bug : 956307 1023751

Martin van Kervel Smedshammer discovered a request forgery attack can be performed on Varnish Cache servers that have the HTTP/2 protocol turned on. An attacker may introduce characters through the HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This may in turn be used to successfully exploit vulnerabilities in a server behind the Varnish server.

For Debian 10 buster, these problems have been fixed in version 6.1.1-1+deb10u4.

We recommend that you upgrade your varnish packages.

For the detailed security status of varnish please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/varnish

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the libvarnishapi-dev packages.

Plugin Details

Severity: High

ID: 168207

File Name: debian_DLA-3208.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/27/2022

Updated: 1/22/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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:H/A:N

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

CVSS Score Source: CVE-2022-45060

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:varnish, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libvarnishapi-dev, p-cpe:/a:debian:debian_linux:libvarnishapi2, p-cpe:/a:debian:debian_linux:varnish-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/27/2022

Vulnerability Publication Date: 4/8/2020

Reference Information

CVE: CVE-2020-11653, CVE-2022-45060

Detections

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