RHEL 8 : varnish:6 (RHSA-2021:2988)

medium Nessus Plugin ID 152352

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Synopsis

The remote Red Hat host is missing a security update for varnish:6.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2988 advisory.

Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up.

Security Fix(es):

* varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request (CVE-2021-36740)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 RHEL varnish:6 package based on the guidance in RHSA-2021:2988.

Plugin Details

Severity: Medium

ID: 152352

File Name: redhat-RHSA-2021-2988.nasl

Version: 1.9

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/9/2021

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 2.5

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2021-36740

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:varnish, p-cpe:/a:redhat:enterprise_linux:varnish-modules, cpe:/o:redhat:rhel_eus:8.1, cpe:/o:redhat:rhel_eus:8.4, p-cpe:/a:redhat:enterprise_linux:varnish-devel, p-cpe:/a:redhat:enterprise_linux:varnish-docs, cpe:/o:redhat:rhel_eus:8.2, cpe:/o:redhat:enterprise_linux:8

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/2/2021

Vulnerability Publication Date: 7/14/2021

Reference Information

CVE: CVE-2021-36740

CWE: 444

RHSA: 2021:2988

Detections

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