CVE-2022-34037
First published: Fri Jul 22 2022(Updated: )
## Withdrawn Advisory This advisory has been withdrawn because it is a bug, not a vulnerability. According to the maintainer, the bug only affects the client side of the request and cannot cause a denial of service on the server. ## Original 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) on the client side via a crafted URI.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Caddyserver Caddy | =2.5.1 | |
| go/github.com/caddyserver/caddy | <2.5.2 | 2.5.2 |
| =2.5.1 |
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Reference Links
- https://github.com/caddyserver/caddy/issues/4775
- https://github.com/caddyserver/caddy/issues/4775#issuecomment-1203388116
- https://nvd.nist.gov/vuln/detail/CVE-2022-34037
- https://github.com/caddyserver/caddy/commit/693e9b5283e675b56084ecc83d73176cab0ee27c
- https://github.com/advisories/GHSA-m7gr-5w5g-36jf (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this out-of-bounds read in the rewrite function in Caddy v2.5.1?
The vulnerability ID for this out-of-bounds read in the rewrite function in Caddy v2.5.1 is CVE-2022-34037.
What is the severity of CVE-2022-34037?
The severity of CVE-2022-34037 is high with a CVSS score of 7.5.
How does CVE-2022-34037 impact Caddy v2.5.1?
CVE-2022-34037 allows attackers to cause a Denial of Service (DoS) by exploiting an out-of-bounds read in the rewrite function of Caddy v2.5.1.
How can I fix the out-of-bounds read vulnerability in Caddy v2.5.1?
To fix the out-of-bounds read vulnerability in Caddy v2.5.1, upgrade to a version that includes the fix, such as Caddy v2.5.2 or later.
Where can I find more information about CVE-2022-34037?
You can find more information about CVE-2022-34037 at the following reference: https://github.com/caddyserver/caddy/issues/4775.
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