RHSA-2025:8351: Important: varnish security update

Published Jun 2, 2025
·
Updated

Important: varnish 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.<br>Security Fix(es):<br><li> varnish: request smuggling attacks (CVE-2025-47905)</li> 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

25 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
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 for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
redhat/varnish<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-docs<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-docs<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-docs<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish<6.6.2-3.el9_2.3.aa
6.6.2-3.el9_2.3.aa
redhat/varnish-docs<6.6.2-3.el9_2.3.aa
6.6.2-3.el9_2.3.aa
redhat/varnish-devel<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-devel<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-devel<6.6.2-3.el9_2.3
6.6.2-3.el9_2.3
redhat/varnish-devel<6.6.2-3.el9_2.3.aa
6.6.2-3.el9_2.3.aa

Remediation

Event History

Jun 2, 2025
Advisory Published
via Red Hat·01:12 AM
Jun 26, 2025
Advisory Published
via Red Hat·02:49 AM
Data Sourced
via Red Hat·02:49 AM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2025:8351?

The severity of RHSA-2025:8351 is classified as Important.

2

How do I fix RHSA-2025:8351?

To fix RHSA-2025:8351, you need to apply the latest security updates provided by Red Hat for your affected software version.

3

What vulnerabilities are addressed in RHSA-2025:8351?

RHSA-2025:8351 addresses security vulnerabilities found in the Varnish package.

4

Which versions of Red Hat products are affected by RHSA-2025:8351?

RHSA-2025:8351 affects multiple Red Hat Enterprise Linux and CodeReady Linux Builder versions for various architectures.

5

Is there a workaround for RHSA-2025:8351?

No specific workarounds are provided for RHSA-2025:8351; updating to the patched version is recommended.

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