CVE-2022-34037
High
Description
An out-of-bounds read in the rewrite function at /modules/caddyhttp/rewrite/rewrite.go in Caddy v2.5.1 allows attackers to cause a Denial of Service (DoS) via a crafted URI. Note: This has been disputed as a bug, not a security vulnerability, in the Caddy web server that emerged when an administrator's bad configuration containing a malformed request URI caused the server to return an empty reply instead of a valid HTTP response to the client.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Caddy
PublishedJul 22, 2022
First seenJul 22, 2022
How to fix
Update
- github.com/caddyserver/caddy2.5.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| caddyserver caddy | 2.5.1 | — |
| github.com/caddyserver/caddyGo | v < 2.5.2 | 2.5.2 |
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