RHSA-2025:8310: 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

18 affected componentsFixes available
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 Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
redhat/varnish<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
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<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
redhat/varnish-devel<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
redhat/varnish-docs<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
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<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
redhat/varnish-devel<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
redhat/varnish-docs<6.0.8-2.module+el8.6.0+23122+0639db89.4
6.0.8-2.module+el8.6.0+23122+0639db89.4
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

Remediation

Event History

May 29, 2025
Advisory Published
via Red Hat·12:17 PM
Jun 26, 2025
Advisory Published
via Red Hat·12:40 PM
Data Sourced
via Red Hat·12:40 PM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

What is the severity of RHSA-2025:8310?

The severity of RHSA-2025:8310 is classified as important.

2

How do I fix RHSA-2025:8310?

To fix RHSA-2025:8310, update to the appropriate patched version of varnish, specifically version 6.0.8-2.module+el8.6.0+23122+0639db89.4.

3

What versions of varnish are affected by RHSA-2025:8310?

Affected versions of varnish include those prior to 6.0.8-2.module+el8.6.0+23122+0639db89.4.

4

What is Varnish Cache associated with RHSA-2025:8310?

Varnish Cache is a high-performance HTTP accelerator that speeds up web pages by storing them in memory.

5

Are any other Red Hat products affected by RHSA-2025:8310?

Yes, other affected products include various versions of Red Hat Enterprise Linux Server, with specific focus on the modules and packages related to varnish.

Contact

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