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Date: Thu, 30 May 2024 16:49:35 +0200
From: Solar Designer <solar@...nwall.com>
To: oss-security@...ts.openwall.com
Subject: nginx HTTP/3 security issues/fixes

Hi,

This was on the nginx-announce list yesterday:

https://mailman.nginx.org/pipermail/nginx-announce/2024/GMY32CSHFH6VFTN76HJNX7WNEX4RLHF6.html

---
[nginx-announce] nginx security advisory (CVE-2024-31079, CVE-2024-32760, CVE-2024-34161, CVE-2024-35200)
Sergey Kandaurov pluknet at nginx.com
Wed May 29 15:12:07 UTC 2024

Hello!

Four security issues were identified in nginx HTTP/3 implementation, which
might allow an attacker that uses a specially crafted QUIC session to cause
a worker process crash (CVE-2024-31079, CVE-2024-32760, CVE-2024-35200),
worker process memory disclosure on systems with MTU larger than 4096
bytes (CVE-2024-34161), or might have potential other impact (CVE-2024-31079,
CVE-2024-32760).

The issues affect nginx compiled with the experimental ngx_http_v3_module
(not compiled by default) if the "quic" option of the "listen" directive
is used in a configuration file.

The issues affect nginx 1.25.0-1.25.5, 1.26.0.
The issues are fixed in nginx 1.27.0, 1.26.1.

Thanks to Nils Bars of CISPA.
---

and another one in February:

https://mailman.nginx.org/pipermail/nginx-announce/2024/NW6MNW34VZ6HDIHH5YFBIJYZJN7FGNAV.html

---
[nginx-announce] nginx security advisory (CVE-2024-24989, CVE-2024-24990)
Sergey Kandaurov pluknet at nginx.com
Wed Feb 14 17:00:05 UTC 2024

Two security issues were identified in nginx HTTP/3 implementation,
which might allow an attacker that uses a specially crafted QUIC session
to cause a worker process crash (CVE-2024-24989, CVE-2024-24990) or
might have potential other impact (CVE-2024-24990).

The issues affect nginx compiled with the ngx_http_v3_module (not
compiled by default) if the "quic" option of the "listen" directive
is used in a configuration file.

The issue affects nginx 1.25.0 - 1.25.3.
The issue is fixed in nginx 1.25.4.
---

Alexander

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