HAProxy - Load balancer
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Frederic Lecaille 91f479604e BUG/MEDIUM: quic-be: quic_conn_closed buffer overflow
This bug impacts only the backends.

Recent commits have modified quic_rx_pkt_parse() for the QUIC backend to handle the
retry token, and version negotiation. This function is called for the quic_conn
even when is closing state (so for the quic_conn_closed struct). The quic_conn
struct and quic_conn_closed struct share some members thank to the leading
QUIC_CONN_COMMON struct. The recent modification impacts some members which do not
exist for the quic_connn_closed struct, leading to buffer overflows if modified.

For the backends only this patch:
  1- silently drops the Retry packet (received/parsed only by backends)
  2- silently drops the Initial packets received in closing state

This is safe for the Initial packets because in closing state the datagrams
are entirely skipped thanks to qc_rx_check_closing() in quic_dgram_parse().

No backport needed because the backend support arrived with the current dev.
2025-11-21 10:49:44 +01:00
.github CI: github: make install-bin instead of make install 2025-11-18 20:11:23 +01:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin ADMIN: dump-certs: let dry-run compare certificates 2025-11-20 16:50:20 +01:00
dev DEV: patchbot: use git reset+checkout instead of pull 2025-10-08 04:38:35 +02:00
doc DOC: http: document 413 response code 2025-11-20 18:07:01 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include MINOR: muxes: Support an optional ALPN string when defining mux protocols 2025-11-20 16:14:52 +01:00
reg-tests REGTESTS: ssl: also verify that 0-rtt properly advertises early-data:1 2025-11-19 22:30:31 +01:00
scripts SCRIPTS: build-ssl: fix rpath in AWS-LC install for openssl and bssl bin 2025-11-03 15:04:57 +01:00
src BUG/MEDIUM: quic-be: quic_conn_closed buffer overflow 2025-11-21 10:49:44 +01:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES DOC: clarify the experimental status for certain features 2025-10-17 18:41:13 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.3-dev13 2025-11-14 19:22:46 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL BUILD: makefile: bump the default minimum linux version to 4.17 2025-09-05 09:44:56 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile BUILD: Makefile: remove halog from install-admin 2025-11-19 16:52:20 +01:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.3-dev13 2025-11-14 19:22:46 +01:00
VERSION [RELEASE] Released version 3.3-dev13 2025-11-14 19:22:46 +01:00

HAProxy

alpine/musl AWS-LC openssl no-deprecated Illumos NetBSD FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

Please refer to the following files depending on what you're looking for:

  • INSTALL for instructions on how to build and install HAProxy
  • BRANCHES to understand the project's life cycle and what version to use
  • LICENSE for the project's license
  • CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.