RHSA-2025:8340: Important: varnish:6 security update

Published Jun 2, 2025
·
Updated

Important: varnish:6 security update

Other sources

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: request smuggling attacks (CVE-2025-47905) 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.

— Red Hat

Affected Software

18 affected componentsFixes available
redhat/varnish<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-modules<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-devel<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-docs<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-modules<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish-modules-debuginfo<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish-modules-debugsource<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-devel<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-docs<6.0.6-2.module+el8.4.0+23123+54dbaab7.6
6.0.6-2.module+el8.4.0+23123+54dbaab7.6
redhat/varnish-modules<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish-modules-debuginfo<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
redhat/varnish-modules-debugsource<0.15.0-5.module+el8.3.0+6843+b3b42fcc
0.15.0-5.module+el8.3.0+6843+b3b42fcc
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server - TUS

Remediation

Event History

Jun 2, 2025
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·01:11 AM
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Frequently Asked Questions

1

What is the severity of RHSA-2025:8340?

The severity of RHSA-2025:8340 is classified as important.

2

How do I fix RHSA-2025:8340?

To fix RHSA-2025:8340, update Varnish to version 6.0.6-2.module+el8.4.0+23123+54dbaab7.6 or apply the necessary patches.

3

Which software packages are affected by RHSA-2025:8340?

RHSA-2025:8340 affects Varnish, Varnish modules, and related development and documentation packages.

4

What are the risks of not addressing RHSA-2025:8340?

Not addressing RHSA-2025:8340 may expose your system to vulnerabilities that could be exploited by attackers.

5

Is there a changelog available for RHSA-2025:8340?

Yes, the changelog for RHSA-2025:8340 outlines the security fixes and improvements included in the update.

Company

Resources

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RHSA-2025:8340 - Important: varnish:6 security update - SecAlerts