- Issued:
- 2023-10-23
- Updated:
- 2023-10-23
RHSA-2023:5989 - Important: varnish security update
Synopsis
Important: varnish security update
Type/Severity
Security Advisory Important
Topic
An update for varnish is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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):
- HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
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.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 8.10 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 8.10 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 8.10 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 8.10 | aarch64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.8 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 8.8 | x86_64 |
Updated Packages
- varnish-devel-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.ppc64le.rpm
- varnish-modules-0.15.0-6.module+el8.5.0+11976+0b4af72d.ppc64le.rpm
- varnish-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.ppc64le.rpm
- varnish-modules-debuginfo-0.15.0-6.module+el8.5.0+11976+0b4af72d.ppc64le.rpm
- varnish-modules-0.15.0-6.module+el8.5.0+11976+0b4af72d.src.rpm
- varnish-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.src.rpm
- varnish-docs-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.ppc64le.rpm
- varnish-modules-debugsource-0.15.0-6.module+el8.5.0+11976+0b4af72d.ppc64le.rpm
- varnish-docs-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.x86_64.rpm
- varnish-modules-0.15.0-6.module+el8.5.0+11976+0b4af72d.x86_64.rpm
- varnish-modules-debuginfo-0.15.0-6.module+el8.5.0+11976+0b4af72d.x86_64.rpm
- varnish-modules-debugsource-0.15.0-6.module+el8.5.0+11976+0b4af72d.x86_64.rpm
- varnish-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.x86_64.rpm
- varnish-devel-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.x86_64.rpm
- varnish-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.s390x.rpm
- varnish-modules-0.15.0-6.module+el8.5.0+11976+0b4af72d.s390x.rpm
- varnish-docs-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.s390x.rpm
- varnish-devel-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.s390x.rpm
- varnish-modules-debugsource-0.15.0-6.module+el8.5.0+11976+0b4af72d.s390x.rpm
- varnish-modules-debuginfo-0.15.0-6.module+el8.5.0+11976+0b4af72d.s390x.rpm
- varnish-devel-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.aarch64.rpm
- varnish-docs-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.aarch64.rpm
- varnish-modules-debugsource-0.15.0-6.module+el8.5.0+11976+0b4af72d.aarch64.rpm
- varnish-modules-0.15.0-6.module+el8.5.0+11976+0b4af72d.aarch64.rpm
- varnish-6.0.8-3.module+el8.8.0+20455+bdc2c048.1.aarch64.rpm
- varnish-modules-debuginfo-0.15.0-6.module+el8.5.0+11976+0b4af72d.aarch64.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#important
- This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/RHSB-2023-003
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.