File 0671-ssl-Mitigate-memory-usage-from-large-certi... of Package erlang

Overview Repositories Revisions Requests Users Attributes Meta

File 0671-ssl-Mitigate-memory-usage-from-large-certificate-cha.patch of Package erlang (Revision 5f7541f3d052cdac876e45c425b29160)

Currently displaying revision 5f7541f3d052cdac876e45c425b29160 , Show latest

From f564a84169f44aa38d514e4c5e340d78d1deac8f Mon Sep 17 00:00:00 2001
From: Ingela Anderton Andin <ingela@erlang.org>
Date: Fri, 10 Feb 2023 07:54:04 +0100
Subject: [PATCH 1/2] ssl: Mitigate memory usage from large certificate chains

---
 lib/ssl/src/ssl_handshake.hrl | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl
index 6dd47019f4..d889a2228b 100644
--- a/lib/ssl/src/ssl_handshake.hrl
+++ b/lib/ssl/src/ssl_handshake.hrl
@@ -83,9 +83,14 @@
 -define(CERTIFICATE_VERIFY, 15).
 -define(CLIENT_KEY_EXCHANGE, 16).
 -define(FINISHED, 20).
-
 -define(MAX_UNIT24, 8388607).
--define(DEFAULT_MAX_HANDSHAKE_SIZE,  (256*1024)).
+
+%% Usually the biggest handshake message will be the message conveying the
+%% certificate chain. This size should be sufficient for usual certificate
+%% chains, certificates without special extensions have a typical size of
+%%  1-2kB. By dividing the old default value by 2 we still have a slightly
+%% bigger margin than OpenSSL
+-define(DEFAULT_MAX_HANDSHAKE_SIZE, ((256*1024) div 2)).
 
 -record(random, {
 	  gmt_unix_time, % uint32
-- 
2.35.3

Places

File 0671-ssl-Mitigate-memory-usage-from-large-certificate-cha.patch of Package erlang (Revision 5f7541f3d052cdac876e45c425b29160)

Places