git: f8753cbcaea2 - main - UPDATING: Add a note about the Erlang/OTP ssh daemon default changes
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Date: Thu, 24 Sep 2026 23:34:58 UTC
The branch main has been updated by olgeni:
URL: https://cgit.FreeBSD.org/ports/commit/?id=f8753cbcaea25f888ecf52758662bea89b13eb60
commit f8753cbcaea25f888ecf52758662bea89b13eb60
Author: Jimmy Olgeni <olgeni@FreeBSD.org>
AuthorDate: 2026-09-22 12:42:54 +0000
Commit: Jimmy Olgeni <olgeni@FreeBSD.org>
CommitDate: 2026-09-24 23:33:59 +0000
UPDATING: Add a note about the Erlang/OTP ssh daemon default changes
---
UPDATING | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/UPDATING b/UPDATING
index 9aaec35d07f5..5b0a5d25c6cb 100644
--- a/UPDATING
+++ b/UPDATING
@@ -5,6 +5,33 @@ they are unavoidable.
You should get into the habit of checking this file for changes each time
you update your ports collection, before attempting any port upgrades.
+20260925:
+ AFFECTS: users of lang/erlang, lang/erlang-runtime27, lang/erlang-runtime28
+ and lang/erlang-runtime29 running an SSH daemon
+ AUTHOR: olgeni@FreeBSD.org
+
+ OTP 29.1.1, 28.5.0.7 and 27.3.4.18 fix CVE-2026-68956, where the ssh
+ application did not enforce the max_channels daemon option for session
+ channels without an active subsystem. An authenticated client could open
+ an unbounded number of idle channels and exhaust the memory of the whole
+ Erlang VM.
+
+ As part of the fix, two ssh daemon defaults have changed:
+
+ max_channels infinity -> 256 (per connection)
+ max_sessions infinity -> 1024 (concurrent connections)
+
+ Deployments that legitimately need more than these limits must now set
+ them explicitly, for example:
+
+ ssh:daemon(Port, [{max_channels, infinity}, {max_sessions, infinity}])
+
+ The same releases also fix CVE-2026-89422 (TLS 1.3 client completes the
+ handshake without validating the server certificate when the ServerHello
+ carries an unsolicited pre_shared_key) and CVE-2026-65634 (superlinear
+ CPU denial-of-service in the asn1 OID decoder). Those need no
+ configuration changes.
+
20260910:
AFFECTS: users of databases/postgis36
AUTHOR: lbartoletti@FreeBSD.org