CVE-2022-45060
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Varnish-software Varnish Cache
PublishedNov 9, 2022
First seenNov 9, 2022
Weakness typeCWE-20Improper input validation
How to fix
Update
- varnish-software varnish_cache6.0.11 or later
- varnish_cache_project varnish_cache6.0.11, 7.1.2 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6ZMOZVBLZXHEV5VRW4I4SOWLQEK5OF5/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGF6LFTHXCSYMYUX5HLMVXQH3WHCSFLU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4KVVCIQVINQQ2D7ORNARSYALMJUMP3I/
- debian.org/security/2023/dsa-5334
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| varnish-software varnish_cache | 6.0.0 ≤ v < 6.0.11 | 6.0.11 |
| varnish-software varnish_cache_plus | 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.0.8, 6.0.9, 6.0.10 | — |
| varnish_cache_project varnish_cache | 5.0.0 ≤ v < 6.0.11, 7.0.0 ≤ v < 7.1.2, 7.2.0 | 6.0.11, 7.1.2 |
| fedoraproject fedora | 35, 36, 37 | — |
| debian debian_linux | 10.0, 11.0 | — |
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