An HTTP Request Forgery issue was discovered in Varnish Cache 5.x and 6.x before 6.0.11, 7.x before 7.1.2, and 7.2.x before 7.2.1. An attacker may introduce characters through HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This could, in turn, be used to exploit vulnerabilities in a server behind the Varnish server. Note: the 6.0.x LTS series (before 6.0.11) is affected.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade varnish-develUpgrade varnish-docsUpgrade varnish-modulesUpgrade varnish | Dec 6, 2022 | Nov 9, 2022 |
| Alpine Linux | — | Upgrade varnish | Aug 22, 2024 | Nov 9, 2022 |
| Centos_linux | — | Upgrade varnishUpgrade varnish-modules-debugsourceUpgrade varnish-docsUpgrade varnish-develUpgrade varnish-modulesUpgrade varnish-modules-debuginfo | Nov 29, 2022 | Nov 9, 2022 |
| Debian | — | Upgrade varnish | Nov 29, 2022 | Nov 9, 2022 |
| Gentoo Linux | — | Upgrade www-servers/vinyl-cache. | Aug 26, 2026 | Aug 26, 2026 |
| Oracle_linux | — | Upgrade varnish-docsUpgrade varnish-develUpgrade varnishUpgrade varnish-modules | Nov 29, 2022 | Nov 8, 2022 |
| Redhat_linux | — | Upgrade varnish-modules-debuginfoUpgrade varnish-docsUpgrade varnishUpgrade varnish-modulesUpgrade varnish-modules-debugsourceUpgrade varnish-devel | Nov 29, 2022 | Nov 9, 2022 |
| Rocky_linux | — | Upgrade varnishUpgrade varnish-modules-debuginfoUpgrade varnish-develUpgrade varnish-modulesUpgrade varnish-modules-debugsourceUpgrade varnish-docs | Mar 12, 2024 | Nov 9, 2022 |
| Suse | — | Upgrade varnishUpgrade libvarnishapi3Upgrade varnish-devel | Nov 14, 2022 | Nov 9, 2022 |
| Ubuntu | — | Upgrade libvarnishapi2 (Ubuntu Pro)Upgrade varnish (Ubuntu Pro)Upgrade libvarnishapi1 (Ubuntu Pro) | Mar 27, 2025 | Nov 9, 2022 |
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