CVE-2021-40346
- State
- Published
- Severity
- Not scored
- Published
- Sep 8, 2021
- Updated
- Aug 4, 2024
- Reserved
- Aug 31, 2021
Description
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://www.mail-archive.com/haproxy%40formilux.org
- https://git.haproxy.org/?p=haproxy.git
- DSA-4968vendor-advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg41114.html
- https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integer-overflow-enables-http-smuggling/
- https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9ce2c95
- [cloudstack-dev] 20210910 CVE-2021-40346 (haproxy 2.x)mailing-list
- [cloudstack-dev] 20210910 Re: CVE-2021-40346 (haproxy 2.x)mailing-list
- FEDORA-2021-3493f9f6abvendor-advisory
- FEDORA-2021-cd5ee418f6vendor-advisory
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