From 335a57525f28425fa076e1b2098679dc2211f8e4 Mon Sep 17 00:00:00 2001 From: Fred Lefranc Date: Mon, 17 Aug 2026 16:01:22 +0200 Subject: [PATCH] packages/haproxy: security bump to version 2.6.32 Bugfix release with large number of (security) fixes. HAProxy 2.6.32 was released on 2026/07/29. It added 33 new commits after version 2.6.31. As for the 2.8.27, the announce is an expurgated copy-paste of the 3.4.3 announce: * stats: Two issues about the stats page, reported by Red Hat/AISLE Research, were fixed. Proxies updated through the stats page while in "stats admin" mode were not subject to the "stats scope" filtering, meaning a scope meant to restrict which proxies are visible/actionable could be silently bypassed on POST requests. Separately, POST requests to the stats interface did not validate that the Origin (or Referer) header matched the Host, which is now checked to mitigate CSRF attacks. * ssl-gencert: A memory leak on every certificate generation was fixed. Two temporary buffers were not freed after generating a certificate on the fly, leaking memory each time a new SNI triggered certificate generation. This issue was reported by Red Hat/AISLE Research. * sample/protobuf: buffer overflows after pointer-shift converters, reported by Red Hat/AISLE Research and Charles Vosburgh, were fixed. Several converters (protobuf/ungrpc field extraction, ltrim()) move the sample's data pointer forward on success but did not shrink the sample's recorded buffer capacity accordingly. A converter chained afterwards that relies on that capacity (e.g. padding via memset()) could then write past the end of the buffer, leading to heap corruption or a worker crash. All the affected converters now adjust the capacity together with the pointer. * protobuf: A nested-path validation bypass reported by Red Hat/AISLE Research was fixed. The protobuf field lookup used for the protobuf()/ungrpc() converters did not strictly enforce hierarchical boundaries, so a flat sibling field could incorrectly satisfy a nested-path lookup (e.g. matching a root-level field as if it were nested under a parent). The lookup was rewritten as a strict, non-recursive path walker that correctly bounds each nesting level. Separately, a crash because of deprecated protobuf group wire types was fixed. These wire types are now explicitly rejected. * http-fetch: Two crashes reachable from health-check configurations were fixed. "res.body"/"res.hdr"/... and similar response fetches assumed the health-check receive buffer always held an HTX message, which is only true for actual HTTP checks; on a plain TCP check, a hostile/misbehaving server could craft the first bytes of its reply to be misinterpreted as HTX internal fields, causing a wild read and worker crash (or leaking arbitrary process memory). Separately, "capture.req.hdr"/"capture.res.hdr" only validated the upper bound of their index argument, so a negative capture id was accepted at boot and dereferenced an out-of-bounds array entry at runtime, crashing the worker on the very first request. * slz: Several issues were fixed in the SLZ library. A stream alternating many literals in the 144-255 range with cheap back-references could keep inflating indefinitely instead of falling back to a stored block, exceeding the library's documented worst-case output size by several percent. A new accounting mechanism now bounds this overhead. Practical impact on haproxy requires tune.bufsize above ~43 kB with the default reserve. Five small correctness fixes inherited from upstream libslz were also backported: Avoid reading up to a few bytes past the end of very short inputs on architectures without fast unaligned access; stop appending an extra, misplaced block to an already-finished deflate/gzip/zlib stream (which could corrupt the trailing checksum in ~2% of fuzzed streams); fix the Adler32 checksum accumulator sign handling on 32-bit systems (affecting the zlib format only); avoid an undefined-behaviour signed left shift when assembling input words byte by byte; and use the exact bit cost when deciding whether to emit the last literals of a block as a stored block, avoiding compressed output slightly larger than the documented worst case. * peers: A heap overflow when replicating large stick-table dictionary entries was fixed. peer_prepare_updatemsg() never verified that a stick-table entry's dictionary value (e.g. server_key, up to ~16 kB) actually fit in the update message being built. Since the peers protocol is plain-text and unauthenticated, a rogue or compromised peer could plant an oversized entry that overflows the 16 kB trash buffer as soon as the victim replicates ("teaches") it, confirmed as a heap-buffer-overflow write. The function now checks the available room before encoding and fails cleanly if it doesn't fit. This was reported and fixes by Matt Suiche from Tolmo Inc. And, as usual, the bunch of minor fixes here and there, mainly raised during AI-assisted code reviews. Most were never noticed: * HTX API: Some bugs about how the HTX API was used were fixed here and there. * http-act: Double-frees and a couple of state bugs on parsing errors were fixed. * http-fetch/http-ana/http-htx: Few out-of-bounds reads were fixed. * http-conv: The last input character could be lost when calling url-dec converter, when the input buffer was full. This was fixed by failing the converter in that case. * mux-h1: An extra 200ms delay was observed on some H2-to-H1 messages because the end of the message was not always properly detected. This case is now properly handled. * sample: An edge case in be2hex() was fixed. For more details, see the announcement: https://www.mail-archive.com/haproxy@formilux.org/msg47353.html Signed-off-by: Fred Lefranc Signed-off-by: Peter Korsgaard --- package/haproxy/haproxy.hash | 4 ++-- package/haproxy/haproxy.mk | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/package/haproxy/haproxy.hash b/package/haproxy/haproxy.hash index 6bb5dda804..2575c408d7 100644 --- a/package/haproxy/haproxy.hash +++ b/package/haproxy/haproxy.hash @@ -1,5 +1,5 @@ -# From: http://www.haproxy.org/download/2.6/src/haproxy-2.6.27.tar.gz.sha256 -sha256 ccdaf08e8653f9651992212b51af0b5513c2e2cf0cd822ca67c94cffe10386a6 haproxy-2.6.27.tar.gz +# From: http://www.haproxy.org/download/2.6/src/haproxy-2.6.32.tar.gz.sha256 +sha256 8791585ee3bd24cde652d1d840ac7b1f73f086d5e9ec41c5e079592703ea52a4 haproxy-2.6.32.tar.gz # Locally computed: sha256 0717ca51fceaa25ac9e5ccc62e0c727dcf27796057201fb5fded56a25ff6ca28 LICENSE sha256 5df07007198989c622f5d41de8d703e7bef3d0e79d62e24332ee739a452af62a doc/lgpl.txt diff --git a/package/haproxy/haproxy.mk b/package/haproxy/haproxy.mk index cf1484243c..970347d3ed 100644 --- a/package/haproxy/haproxy.mk +++ b/package/haproxy/haproxy.mk @@ -5,7 +5,7 @@ ################################################################################ HAPROXY_VERSION_MAJOR = 2.6 -HAPROXY_VERSION = $(HAPROXY_VERSION_MAJOR).27 +HAPROXY_VERSION = $(HAPROXY_VERSION_MAJOR).32 HAPROXY_SITE = http://www.haproxy.org/download/$(HAPROXY_VERSION_MAJOR)/src HAPROXY_LICENSE = GPL-2.0+ and LGPL-2.1+ with exceptions HAPROXY_LICENSE_FILES = LICENSE doc/lgpl.txt doc/gpl.txt