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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Varnish_cache | Varnish-software | 6.0.0 (including) | 6.0.11 (excluding) |
| Varnish_cache_plus | Varnish-software | 6.0.0 (including) | 6.0.0 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.0-r0 (including) | 6.0.0-r0 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.0-r1 (including) | 6.0.0-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.0-r2 (including) | 6.0.0-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.1-r1 (including) | 6.0.1-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.1-r2 (including) | 6.0.1-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.1-r3 (including) | 6.0.1-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.1-r4 (including) | 6.0.1-r4 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.1-r5 (including) | 6.0.1-r5 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.2-r1 (including) | 6.0.2-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r1 (including) | 6.0.3-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r2 (including) | 6.0.3-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r3 (including) | 6.0.3-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r4 (including) | 6.0.3-r4 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r5 (including) | 6.0.3-r5 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r6 (including) | 6.0.3-r6 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r7 (including) | 6.0.3-r7 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r8 (including) | 6.0.3-r8 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.3-r9 (including) | 6.0.3-r9 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.4-r1 (including) | 6.0.4-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.4-r2 (including) | 6.0.4-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.4-r3 (including) | 6.0.4-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.5-r1 (including) | 6.0.5-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.5-r2 (including) | 6.0.5-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.5-r3 (including) | 6.0.5-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r1 (including) | 6.0.6-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r10 (including) | 6.0.6-r10 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r2 (including) | 6.0.6-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r3 (including) | 6.0.6-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r4 (including) | 6.0.6-r4 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r5 (including) | 6.0.6-r5 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r6 (including) | 6.0.6-r6 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r7 (including) | 6.0.6-r7 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r8 (including) | 6.0.6-r8 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.6-r9 (including) | 6.0.6-r9 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.7-r1 (including) | 6.0.7-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.7-r2 (including) | 6.0.7-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.7-r3 (including) | 6.0.7-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r1 (including) | 6.0.8-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r2 (including) | 6.0.8-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r3 (including) | 6.0.8-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r4 (including) | 6.0.8-r4 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r5 (including) | 6.0.8-r5 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r6 (including) | 6.0.8-r6 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.8-r7 (including) | 6.0.8-r7 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r1 (including) | 6.0.9-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r2 (including) | 6.0.9-r2 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r3 (including) | 6.0.9-r3 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r4 (including) | 6.0.9-r4 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r5 (including) | 6.0.9-r5 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r6 (including) | 6.0.9-r6 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.9-r7 (including) | 6.0.9-r7 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.10-r1 (including) | 6.0.10-r1 (including) |
| Varnish_cache_plus | Varnish-software | 6.0.10-r2 (including) | 6.0.10-r2 (including) |
| Varnish_cache | Varnish_cache_project | 5.0.0 (including) | 6.0.11 (excluding) |
| Varnish_cache | Varnish_cache_project | 7.0.0 (including) | 7.1.2 (excluding) |
| Varnish_cache | Varnish_cache_project | 7.2.0 (including) | 7.2.0 (including) |