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openssl: revert EOF detection change in 1.1.1

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This adds patches to avoid possible application breakage caused by a
change in behavior introduced in 1.1.1e.  It affects at least nginx,
which logs error messages such as:
nginx[16652]: [crit] 16675#0: *358 SSL_read() failed (SSL: error:
4095126:SSL routines:ssl3_read_n:unexpected eof while reading) while
keepalive, client: xxxx, server: [::]:443

Openssl commits db943f4 (Detect EOF while reading in libssl), and
22623e0 (Teach more BIOs how to handle BIO_CTRL_EOF) changed the
behavior when encountering an EOF in SSL_read().  Previous behavior was
to return SSL_ERROR_SYSCALL, but errno would still be 0.  The commits
being reverted changed it to SSL_ERRO_SSL, and add an error to the
stack, which is correct.  Unfortunately this affects a number of
applications that counted on the old behavior, including nginx.

The reversion was discussed in openssl/openssl#11378, and implemented as
PR openssl/openssl#11400.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
This commit is contained in:
Eneas U de Queiroz 2020-03-26 23:20:08 -03:00 committed by Petr Štetiar
parent 247043c968
commit 2e8a4db9b6
2 changed files with 81 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
package/libs/openssl/Makefile
View File

@ -11,7 +11,7 @@ PKG_NAME:=openssl
PKG_BASE:=1.1.1
PKG_BUGFIX:=e
PKG_VERSION:=$(PKG_BASE)$(PKG_BUGFIX)
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_USE_MIPS16:=0
ENGINES_DIR=engines-1.1

80
package/libs/openssl/patches/200-Partially-revert-Detect-EOF-while-reading-in-libssl.patch Normal file
View File

@ -0,0 +1,80 @@
From 30d190caf311d534867df97e26b552e628cb7d85 Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tmraz@fedoraproject.org>
Date: Wed, 25 Mar 2020 14:15:31 +0100
Subject: [PATCH] Partially revert "Detect EOF while reading in libssl"
This partially reverts commit db943f43a60d1b5b1277e4b5317e8f288e7a0a3a.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11400)
diff --git a/crypto/err/openssl.txt b/crypto/err/openssl.txt
index f5324c6819..35512f9caf 100644
--- a/crypto/err/openssl.txt
+++ b/crypto/err/openssl.txt
@@ -2852,7 +2852,6 @@ SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES:242:unable to load ssl3 md5 routines
SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES:243:unable to load ssl3 sha1 routines
SSL_R_UNEXPECTED_CCS_MESSAGE:262:unexpected ccs message
SSL_R_UNEXPECTED_END_OF_EARLY_DATA:178:unexpected end of early data
-SSL_R_UNEXPECTED_EOF_WHILE_READING:294:unexpected eof while reading
SSL_R_UNEXPECTED_MESSAGE:244:unexpected message
SSL_R_UNEXPECTED_RECORD:245:unexpected record
SSL_R_UNINITIALIZED:276:uninitialized
diff --git a/include/openssl/sslerr.h b/include/openssl/sslerr.h
index 0ef684f3c1..ba4c4ae5fb 100644
--- a/include/openssl/sslerr.h
+++ b/include/openssl/sslerr.h
@@ -1,6 +1,6 @@
/*
* Generated by util/mkerr.pl DO NOT EDIT
- * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -734,7 +734,6 @@ int ERR_load_SSL_strings(void);
# define SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES 243
# define SSL_R_UNEXPECTED_CCS_MESSAGE 262
# define SSL_R_UNEXPECTED_END_OF_EARLY_DATA 178
-# define SSL_R_UNEXPECTED_EOF_WHILE_READING 294
# define SSL_R_UNEXPECTED_MESSAGE 244
# define SSL_R_UNEXPECTED_RECORD 245
# define SSL_R_UNINITIALIZED 276
diff --git a/ssl/record/rec_layer_s3.c b/ssl/record/rec_layer_s3.c
index 1c885a664f..b2a7a47eb0 100644
--- a/ssl/record/rec_layer_s3.c
+++ b/ssl/record/rec_layer_s3.c
@@ -296,12 +296,6 @@ int ssl3_read_n(SSL *s, size_t n, size_t max, int extend, int clearold,
ret = BIO_read(s->rbio, pkt + len + left, max - left);
if (ret >= 0)
bioread = ret;
- if (ret <= 0
- && !BIO_should_retry(s->rbio)
- && BIO_eof(s->rbio)) {
- SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL3_READ_N,
- SSL_R_UNEXPECTED_EOF_WHILE_READING);
- }
} else {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_READ_N,
SSL_R_READ_BIO_NOT_SET);
diff --git a/ssl/ssl_err.c b/ssl/ssl_err.c
index a0c7b79659..4b12ed1485 100644
--- a/ssl/ssl_err.c
+++ b/ssl/ssl_err.c
@@ -1,6 +1,6 @@
/*
* Generated by util/mkerr.pl DO NOT EDIT
- * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -1205,8 +1205,6 @@ static const ERR_STRING_DATA SSL_str_reasons[] = {
"unexpected ccs message"},
{ERR_PACK(ERR_LIB_SSL, 0, SSL_R_UNEXPECTED_END_OF_EARLY_DATA),
"unexpected end of early data"},
- {ERR_PACK(ERR_LIB_SSL, 0, SSL_R_UNEXPECTED_EOF_WHILE_READING),
- "unexpected eof while reading"},
{ERR_PACK(ERR_LIB_SSL, 0, SSL_R_UNEXPECTED_MESSAGE), "unexpected message"},
{ERR_PACK(ERR_LIB_SSL, 0, SSL_R_UNEXPECTED_RECORD), "unexpected record"},
{ERR_PACK(ERR_LIB_SSL, 0, SSL_R_UNINITIALIZED), "uninitialized"},