RHSA-2025:8294: Important: varnish:6 security update

Published May 29, 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

31 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux Server - TUS
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
redhat/varnish<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-modules<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-devel<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-docs<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-modules<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-modules-debuginfo<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-modules-debugsource<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-devel<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-docs<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-modules-debuginfo<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-modules-debugsource<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-devel<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-docs<6.0.8-3.module+el8.8.0+23121+d8c7990e.3
6.0.8-3.module+el8.8.0+23121+d8c7990e.3
redhat/varnish-modules<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-modules-debuginfo<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish-modules-debugsource<0.15.0-6.module+el8.5.0+11976+0b4af72d
0.15.0-6.module+el8.5.0+11976+0b4af72d
redhat/varnish<6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
redhat/varnish-devel<6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
redhat/varnish-docs<6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
6.0.8-3.module+el8.8.0+23121+d8c7990e.3.aa
redhat/varnish-modules<0.15.0-6.module+el8.5.0+11976+0b4af72d.aa
0.15.0-6.module+el8.5.0+11976+0b4af72d.aa
redhat/varnish-modules-debuginfo<0.15.0-6.module+el8.5.0+11976+0b4af72d.aa
0.15.0-6.module+el8.5.0+11976+0b4af72d.aa
redhat/varnish-modules-debugsource<0.15.0-6.module+el8.5.0+11976+0b4af72d.aa
0.15.0-6.module+el8.5.0+11976+0b4af72d.aa

Remediation

Event History

May 29, 2025
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·07:35 AM
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Frequently Asked Questions

1

What is the severity of RHSA-2025:8294?

The severity of RHSA-2025:8294 is classified as important.

2

How do I fix RHSA-2025:8294?

To fix RHSA-2025:8294, update Varnish Cache to version 6.0.8-3.module+el8.8.0+23121+d8c7990e.3 or higher.

3

Which systems are affected by RHSA-2025:8294?

RHSA-2025:8294 affects various versions of Red Hat Enterprise Linux including x86_64, ARM 64, Power LE, and IBM z Systems.

4

What are the components involved in RHSA-2025:8294?

The components involved in RHSA-2025:8294 include Varnish, Varnish-devel, and Varnish-modules packages.

5

Is there any information about the vulnerabilities addressed in RHSA-2025:8294?

Yes, RHSA-2025:8294 addresses security fixes regarding request handling in Varnish Cache.

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