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import dovecot-2.3.8-4.el8

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CentOS Sources 2020-11-03 06:59:24 -05:00 committed by Andrew Lukoshko
parent 552325dc66
commit 5e1a55119d
9 changed files with 1240 additions and 794 deletions
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1090
SOURCES/dovecot-2.3.10-CVE_2020_10957,10958,10967.patch Normal file
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60
SOURCES/dovecot-2.3.10-CVE_2020_10957p1.patch
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@ -1,60 +0,0 @@
From 606724bd528b92347dce580d3ab48fc1e3c2f4d7 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 20:57:03 +0100
Subject: [PATCH] lib-smtp: smtp-syntax - Do not allow NULL return parameters
for smtp_string_parse().
---
src/lib-smtp/smtp-server-cmd-noop.c | 8 ++++++--
src/lib-smtp/smtp-syntax.c | 9 +++++----
2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/src/lib-smtp/smtp-server-cmd-noop.c b/src/lib-smtp/smtp-server-cmd-noop.c
index 4986f800c8..550d709eab 100644
--- a/src/lib-smtp/smtp-server-cmd-noop.c
+++ b/src/lib-smtp/smtp-server-cmd-noop.c
@@ -13,11 +13,15 @@ void smtp_server_cmd_noop(struct smtp_server_cmd_ctx *cmd,
struct smtp_server_connection *conn = cmd->conn;
struct smtp_server_command *command = cmd->cmd;
const struct smtp_server_callbacks *callbacks = conn->callbacks;
+ const char *param, *error;
int ret;
/* "NOOP" [ SP String ] CRLF */
- if (*params != '\0' && smtp_string_parse(params, NULL, NULL) < 0) {
- smtp_server_reply(cmd, 501, "5.5.4", "Invalid parameters");
+ ret = smtp_string_parse(params, &param, &error);
+ if (ret < 0) {
+ smtp_server_reply(cmd, 501, "5.5.4",
+ "Invalid string parameter: %s",
+ error);
return;
}
diff --git a/src/lib-smtp/smtp-syntax.c b/src/lib-smtp/smtp-syntax.c
index 5d22445f72..6826682af1 100644
--- a/src/lib-smtp/smtp-syntax.c
+++ b/src/lib-smtp/smtp-syntax.c
@@ -17,7 +17,9 @@ int smtp_string_parse(const char *string,
const char **value_r, const char **error_r)
{
struct smtp_parser parser;
- int ret;
+
+ *value_r = NULL;
+ *error_r = NULL;
if (string == NULL || *string == '\0') {
*value_r = "";
@@ -26,9 +28,8 @@ int smtp_string_parse(const char *string,
smtp_parser_init(&parser, pool_datastack_create(), string);
- if ((ret=smtp_parser_parse_string(&parser, value_r)) < 0) {
- if (error_r != NULL)
- *error_r = parser.error;
+ if (smtp_parser_parse_string(&parser, value_r) < 0) {
+ *error_r = parser.error;
return -1;
}
if (parser.cur < parser.end) {

51
SOURCES/dovecot-2.3.10-CVE_2020_10957p2.patch
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@ -1,51 +0,0 @@
From aedb205c79395de77127fb7166b29b09319df23c Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 21:11:01 +0100
Subject: [PATCH] lib-smtp: smtp-syntax - Do not allow NULL return parameters
for smtp_xtext_parse().
---
src/lib-smtp/smtp-syntax.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/src/lib-smtp/smtp-syntax.c b/src/lib-smtp/smtp-syntax.c
index 6826682af1..0b0a91ce07 100644
--- a/src/lib-smtp/smtp-syntax.c
+++ b/src/lib-smtp/smtp-syntax.c
@@ -86,20 +86,20 @@ int smtp_xtext_parse(const char *xtext,
{
struct smtp_parser parser;
string_t *value = NULL;
- int ret;
+
+ *value_r = NULL;
+ *error_r = NULL;
if (xtext == NULL || *xtext == '\0') {
*value_r = "";
return 1;
}
- if (value_r != NULL)
- value = t_str_new(256);
+ value = t_str_new(256);
smtp_parser_init(&parser, pool_datastack_create(), xtext);
- if ((ret=smtp_parser_parse_xtext(&parser, value)) < 0) {
- if (error_r != NULL)
- *error_r = parser.error;
+ if (smtp_parser_parse_xtext(&parser, value) < 0) {
+ *error_r = parser.error;
return -1;
}
if (parser.cur < parser.end) {
@@ -110,8 +110,7 @@ int smtp_xtext_parse(const char *xtext,
if (value_r != NULL) {
*value_r = str_c(value);
if (strlen(*value_r) != str_len(value)) {
- if (*error_r != NULL)
- *error_r = "Encountered NUL character in xtext";
+ *error_r = "Encountered NUL character in xtext";
return -1;
}
}

96
SOURCES/dovecot-2.3.10-CVE_2020_10957p3.patch
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@ -1,96 +0,0 @@
From 874817b169d19a4ae51d80ad5798a396bfe90136 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 21:14:34 +0100
Subject: [PATCH] lib-smtp: smtp-syntax - Do not allow NULL return parameters
for smtp_ehlo_line_parse().
---
src/lib-smtp/smtp-syntax.c | 39 +++++++++++++++++---------------------
1 file changed, 17 insertions(+), 22 deletions(-)
diff --git a/src/lib-smtp/smtp-syntax.c b/src/lib-smtp/smtp-syntax.c
index 0b0a91ce07..5cca6c40fd 100644
--- a/src/lib-smtp/smtp-syntax.c
+++ b/src/lib-smtp/smtp-syntax.c
@@ -249,12 +249,10 @@ static int smtp_parse_ehlo_line(struct smtp_parser *parser,
(i_isalnum(*parser->cur) || *parser->cur == '-'))
parser->cur++;
- if (key_r != NULL)
- *key_r = p_strdup_until(parser->pool, pbegin, parser->cur);
+ *key_r = p_strdup_until(parser->pool, pbegin, parser->cur);
if (parser->cur >= parser->end) {
- if (params_r != NULL)
- *params_r = p_new(parser->pool, const char *, 1);
+ *params_r = p_new(parser->pool, const char *, 1);
return 1;
}
if (*parser->cur != ' ') {
@@ -264,18 +262,16 @@ static int smtp_parse_ehlo_line(struct smtp_parser *parser,
parser->cur++;
pbegin = parser->cur;
- if (params_r != NULL)
- p_array_init(&params, parser->pool, 32);
+ p_array_init(&params, parser->pool, 32);
while (parser->cur < parser->end) {
if (*parser->cur == ' ') {
if (parser->cur+1 >= parser->end || *(parser->cur+1) == ' ') {
parser->error = "Missing EHLO parameter after ' '";
return -1;
}
- if (params_r != NULL) {
- param = p_strdup_until(parser->pool, pbegin, parser->cur);
- array_push_back(&params, &param);
- }
+ param = p_strdup_until(parser->pool, pbegin,
+ parser->cur);
+ array_push_back(&params, &param);
pbegin = parser->cur + 1;
} else if (!smtp_char_is_ehlo_param(*parser->cur)) {
parser->error = "Unexpected character in EHLO parameter";
@@ -284,12 +280,10 @@ static int smtp_parse_ehlo_line(struct smtp_parser *parser,
parser->cur++;
}
- if (params_r != NULL) {
- param = p_strdup_until(parser->pool, pbegin, parser->cur);
- array_push_back(&params, &param);
- array_append_zero(&params);
- *params_r = array_front(&params);
- }
+ param = p_strdup_until(parser->pool, pbegin, parser->cur);
+ array_push_back(&params, &param);
+ array_append_zero(&params);
+ *params_r = array_front(&params);
return 1;
}
@@ -297,19 +291,20 @@ int smtp_ehlo_line_parse(const char *ehlo_line, const char **key_r,
const char *const **params_r, const char **error_r)
{
struct smtp_parser parser;
- int ret;
+
+ *key_r = NULL;
+ *params_r = NULL;
+ *error_r = NULL;
if (ehlo_line == NULL || *ehlo_line == '\0') {
- if (error_r != NULL)
- *error_r = "Parameter is empty";
+ *error_r = "Parameter is empty";
return -1;
}
smtp_parser_init(&parser, pool_datastack_create(), ehlo_line);
- if ((ret=smtp_parse_ehlo_line(&parser, key_r, params_r)) <= 0) {
- if (error_r != NULL)
- *error_r = parser.error;
+ if (smtp_parse_ehlo_line(&parser, key_r, params_r) <= 0) {
+ *error_r = parser.error;
return -1;
}
return 1;

24
SOURCES/dovecot-2.3.10-CVE_2020_10957p4.patch
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@ -1,24 +0,0 @@
From 5efeccc10beccbf8d7700adec1278f97d416cbc6 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 22:42:15 +0100
Subject: [PATCH] lib-smtp: smtp-syntax - Return 0 for smtp_string_parse() with
empty input.
This is what the current users of this function actually expect.
---
src/lib-smtp/smtp-syntax.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/lib-smtp/smtp-syntax.c b/src/lib-smtp/smtp-syntax.c
index 5cca6c40fd..cf86f87336 100644
--- a/src/lib-smtp/smtp-syntax.c
+++ b/src/lib-smtp/smtp-syntax.c
@@ -23,7 +23,7 @@ int smtp_string_parse(const char *string,
if (string == NULL || *string == '\0') {
*value_r = "";
- return 1;
+ return 0;
}
smtp_parser_init(&parser, pool_datastack_create(), string);

191
SOURCES/dovecot-2.3.10-CVE_2020_10957p5.patch
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@ -1,191 +0,0 @@
From 363af76535f8137ba76d9de7935023bab9a045ef Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 22:24:20 +0100
Subject: [PATCH] lib-smtp: Add tests for smtp_string_parse() and
smtp_string_write().
---
src/lib-smtp/Makefile.am | 5 ++
src/lib-smtp/test-smtp-syntax.c | 150 ++++++++++++++++++++++++++++++++
2 files changed, 155 insertions(+)
create mode 100644 src/lib-smtp/test-smtp-syntax.c
diff --git a/src/lib-smtp/Makefile.am b/src/lib-smtp/Makefile.am
index b03761df8b..d87cd4e6d3 100644
--- a/src/lib-smtp/Makefile.am
+++ b/src/lib-smtp/Makefile.am
@@ -72,6 +72,7 @@ pkginc_libdir=$(pkgincludedir)
pkginc_lib_HEADERS = $(headers)
test_programs = \
+ test-smtp-syntax \
test-smtp-address \
test-smtp-params \
test-smtp-reply \
@@ -121,6 +122,10 @@ if BUILD_OPENSSL
test_libs_ssl += ../lib-ssl-iostream/libssl_iostream_openssl.la
endif
+test_smtp_syntax_SOURCES = test-smtp-syntax.c
+test_smtp_syntax_LDADD = $(test_libs)
+test_smtp_syntax_DEPENDENCIES = $(test_deps)
+
test_smtp_address_SOURCES = test-smtp-address.c
test_smtp_address_LDFLAGS = -export-dynamic
test_smtp_address_LDADD = $(test_libs)
diff --git a/src/lib-smtp/test-smtp-syntax.c b/src/lib-smtp/test-smtp-syntax.c
new file mode 100644
index 0000000000..735cd01220
--- /dev/null
+++ b/src/lib-smtp/test-smtp-syntax.c
@@ -0,0 +1,150 @@
+/* Copyright (c) 2020 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "str.h"
+#include "str-sanitize.h"
+#include "test-common.h"
+#include "smtp-syntax.h"
+
+/*
+ * Valid string parse tests
+ */
+
+struct valid_string_parse_test {
+ const char *input, *parsed, *output;
+};
+
+static const struct valid_string_parse_test
+valid_string_parse_tests[] = {
+ {
+ .input = "",
+ .parsed = "",
+ },
+ {
+ .input = "atom",
+ .parsed = "atom",
+ },
+ {
+ .input = "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "0123456789!#$%&'*+-/=?^_`{|}~",
+ .parsed = "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "0123456789!#$%&'*+-/=?^_`{|}~",
+ },
+ {
+ .input = "\"quoted-string\"",
+ .parsed = "quoted-string",
+ .output = "quoted-string",
+ },
+ {
+ .input = "\"quoted \\\"string\\\"\"",
+ .parsed = "quoted \"string\"",
+ },
+ {
+ .input = "\"quoted \\\\string\\\\\"",
+ .parsed = "quoted \\string\\",
+ },
+};
+
+static const unsigned int valid_string_parse_test_count =
+ N_ELEMENTS(valid_string_parse_tests);
+
+static void test_smtp_string_parse_valid(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < valid_string_parse_test_count; i++) T_BEGIN {
+ const struct valid_string_parse_test *test =
+ &valid_string_parse_tests[i];
+ const char *parsed, *error = NULL;
+ int ret;
+
+ ret = smtp_string_parse(test->input, &parsed, &error);
+
+ test_begin(t_strdup_printf("smtp string valid [%d]", i));
+ test_out_reason(t_strdup_printf("parse(\"%s\")", test->input),
+ ret >= 0, error);
+ test_assert(ret != 0 || *test->input == '\0');
+
+ if (!test_has_failed()) {
+ string_t *encoded;
+ const char *output;
+
+ test_out(t_strdup_printf("parsed = \"%s\"", parsed),
+ null_strcmp(parsed, test->parsed) == 0);
+
+ encoded = t_str_new(255);
+ smtp_string_write(encoded, parsed);
+ output = (test->output == NULL ?
+ test->input : test->output);
+ test_out(t_strdup_printf("write() = \"%s\"",
+ str_c(encoded)),
+ strcmp(str_c(encoded), output) == 0);
+ }
+ test_end();
+ } T_END;
+}
+
+/*
+ * Invalid string parse tests
+ */
+
+struct invalid_string_parse_test {
+ const char *input;
+};
+
+static const struct invalid_string_parse_test
+invalid_string_parse_tests[] = {
+ {
+ .input = " ",
+ },
+ {
+ .input = "\\",
+ },
+ {
+ .input = "\"",
+ },
+ {
+ .input = "\"aa",
+ },
+ {
+ .input = "aa\"",
+ },
+};
+
+static const unsigned int invalid_string_parse_test_count =
+ N_ELEMENTS(invalid_string_parse_tests);
+
+static void test_smtp_string_parse_invalid(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < invalid_string_parse_test_count; i++) T_BEGIN {
+ const struct invalid_string_parse_test *test =
+ &invalid_string_parse_tests[i];
+ const char *parsed, *error;
+ int ret;
+
+ ret = smtp_string_parse(test->input, &parsed, &error);
+
+ test_begin(t_strdup_printf("smtp string invalid [%d]", i));
+ test_out_reason(t_strdup_printf("parse(\"%s\")", test->input),
+ ret < 0, error);
+ test_end();
+ } T_END;
+}
+
+/*
+ * Tests
+ */
+
+int main(void)
+{
+ static void (*test_functions[])(void) = {
+ test_smtp_string_parse_valid,
+ test_smtp_string_parse_invalid,
+ NULL
+ };
+ return test_run(test_functions);
+}

340
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@ -1,340 +0,0 @@
From f206dc478d1b22183f645ea8c98ffe3712e106b2 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Tue, 24 Mar 2020 22:33:45 +0100
Subject: [PATCH] lib-smtp: test-smtp-server-errors - Add tests for VRFY and
NOOP commands with invalid parameters.
---
src/lib-smtp/test-smtp-server-errors.c | 312 +++++++++++++++++++++++++
1 file changed, 312 insertions(+)
diff --git a/src/lib-smtp/test-smtp-server-errors.c b/src/lib-smtp/test-smtp-server-errors.c
index 759c332d88..13d3b97def 100644
--- a/src/lib-smtp/test-smtp-server-errors.c
+++ b/src/lib-smtp/test-smtp-server-errors.c
@@ -1273,6 +1273,316 @@ static void test_bad_rcpt(void)
test_end();
}
+/*
+ * Bad VRFY
+ */
+
+/* client */
+
+struct _bad_vrfy_client {
+ struct smtp_reply_parser *parser;
+ unsigned int reply;
+
+ bool replied:1;
+};
+
+static void
+test_bad_vrfy_client_input(struct client_connection *conn)
+{
+ struct _bad_vrfy_client *ctx = conn->context;
+ struct smtp_reply *reply;
+ const char *error;
+ int ret;
+
+ while ((ret = smtp_reply_parse_next(ctx->parser, FALSE,
+ &reply, &error)) > 0) {
+ if (debug)
+ i_debug("REPLY: %s", smtp_reply_log(reply));
+
+ switch (ctx->reply++) {
+ case 0: /* greeting */
+ i_assert(reply->status == 220);
+ break;
+ case 1: /* bad command reply */
+ switch (client_index) {
+ case 0: case 1: case 2:
+ i_assert(reply->status == 501);
+ break;
+ case 3:
+ i_assert(smtp_reply_is_success(reply));
+ break;
+ default:
+ i_unreached();
+ }
+ ctx->replied = TRUE;
+ io_loop_stop(ioloop);
+ connection_disconnect(&conn->conn);
+ return;
+ default:
+ i_unreached();
+ }
+ }
+
+ i_assert(ret == 0);
+}
+
+static void
+test_bad_vrfy_client_connected(struct client_connection *conn)
+{
+ struct _bad_vrfy_client *ctx;
+
+ ctx = p_new(conn->pool, struct _bad_vrfy_client, 1);
+ ctx->parser = smtp_reply_parser_init(conn->conn.input, (size_t)-1);
+ conn->context = ctx;
+
+ switch (client_index) {
+ case 0:
+ o_stream_nsend_str(conn->conn.output,
+ "VRFY\r\n");
+ break;
+ case 1:
+ o_stream_nsend_str(conn->conn.output,
+ "VRFY \"hendrik\r\n");
+ break;
+ case 2:
+ o_stream_nsend_str(conn->conn.output,
+ "VRFY hen\"drik\r\n");
+ break;
+ case 3:
+ o_stream_nsend_str(conn->conn.output,
+ "VRFY \"hendrik\"\r\n");
+ break;
+ default:
+ i_unreached();
+ }
+}
+
+static void
+test_bad_vrfy_client_deinit(struct client_connection *conn)
+{
+ struct _bad_vrfy_client *ctx = conn->context;
+
+ i_assert(ctx->replied);
+ smtp_reply_parser_deinit(&ctx->parser);
+}
+
+static void test_client_bad_vrfy(unsigned int index)
+{
+ test_client_input = test_bad_vrfy_client_input;
+ test_client_connected = test_bad_vrfy_client_connected;
+ test_client_deinit = test_bad_vrfy_client_deinit;
+ test_client_run(index);
+}
+
+/* server */
+
+static void
+test_server_bad_vrfy_disconnect(void *context ATTR_UNUSED, const char *reason)
+{
+ if (debug)
+ i_debug("Disconnect: %s", reason);
+}
+
+static int
+test_server_bad_vrfy_rcpt(void *conn_ctx ATTR_UNUSED,
+ struct smtp_server_cmd_ctx *cmd ATTR_UNUSED,
+ struct smtp_server_recipient *rcpt ATTR_UNUSED)
+{
+ test_assert(FALSE);
+ return 1;
+}
+
+static int
+test_server_bad_vrfy_data_begin(
+ void *conn_ctx ATTR_UNUSED, struct smtp_server_cmd_ctx *cmd ATTR_UNUSED,
+ struct smtp_server_transaction *trans ATTR_UNUSED,
+ struct istream *data_input ATTR_UNUSED)
+{
+ test_assert(FALSE);
+ return 1;
+}
+
+static void
+test_server_bad_vrfy(const struct smtp_server_settings *server_set)
+{
+ server_callbacks.conn_disconnect = test_server_bad_vrfy_disconnect;
+
+ server_callbacks.conn_cmd_rcpt = test_server_bad_vrfy_rcpt;
+ server_callbacks.conn_cmd_data_begin = test_server_bad_vrfy_data_begin;
+ test_server_run(server_set);
+}
+
+/* test */
+
+static void test_bad_vrfy(void)
+{
+ struct smtp_server_settings smtp_server_set;
+
+ test_server_defaults(&smtp_server_set);
+ smtp_server_set.max_client_idle_time_msecs = 1000;
+
+ test_begin("bad VRFY");
+ test_run_client_server(&smtp_server_set,
+ test_server_bad_vrfy,
+ test_client_bad_vrfy, 4);
+ test_end();
+}
+
+/*
+ * Bad NOOP
+ */
+
+/* client */
+
+struct _bad_noop_client {
+ struct smtp_reply_parser *parser;
+ unsigned int reply;
+
+ bool replied:1;
+};
+
+static void
+test_bad_noop_client_input(struct client_connection *conn)
+{
+ struct _bad_noop_client *ctx = conn->context;
+ struct smtp_reply *reply;
+ const char *error;
+ int ret;
+
+ while ((ret = smtp_reply_parse_next(ctx->parser, FALSE,
+ &reply, &error)) > 0) {
+ if (debug)
+ i_debug("REPLY: %s", smtp_reply_log(reply));
+
+ switch (ctx->reply++) {
+ case 0: /* greeting */
+ i_assert(reply->status == 220);
+ break;
+ case 1: /* bad command reply */
+ switch (client_index) {
+ case 1: case 2:
+ i_assert(reply->status == 501);
+ break;
+ case 0: case 3:
+ i_assert(smtp_reply_is_success(reply));
+ break;
+ default:
+ i_unreached();
+ }
+ ctx->replied = TRUE;
+ io_loop_stop(ioloop);
+ connection_disconnect(&conn->conn);
+ return;
+ default:
+ i_unreached();
+ }
+ }
+
+ i_assert(ret == 0);
+}
+
+static void
+test_bad_noop_client_connected(struct client_connection *conn)
+{
+ struct _bad_noop_client *ctx;
+
+ ctx = p_new(conn->pool, struct _bad_noop_client, 1);
+ ctx->parser = smtp_reply_parser_init(conn->conn.input, (size_t)-1);
+ conn->context = ctx;
+
+ switch (client_index) {
+ case 0:
+ o_stream_nsend_str(conn->conn.output,
+ "NOOP\r\n");
+ break;
+ case 1:
+ o_stream_nsend_str(conn->conn.output,
+ "NOOP \"frop\r\n");
+ break;
+ case 2:
+ o_stream_nsend_str(conn->conn.output,
+ "NOOP fr\"op\r\n");
+ break;
+ case 3:
+ o_stream_nsend_str(conn->conn.output,
+ "NOOP \"frop\"\r\n");
+ break;
+ default:
+ i_unreached();
+ }
+}
+
+static void
+test_bad_noop_client_deinit(struct client_connection *conn)
+{
+ struct _bad_noop_client *ctx = conn->context;
+
+ i_assert(ctx->replied);
+ smtp_reply_parser_deinit(&ctx->parser);
+}
+
+static void test_client_bad_noop(unsigned int index)
+{
+ test_client_input = test_bad_noop_client_input;
+ test_client_connected = test_bad_noop_client_connected;
+ test_client_deinit = test_bad_noop_client_deinit;
+ test_client_run(index);
+}
+
+/* server */
+
+static void
+test_server_bad_noop_disconnect(void *context ATTR_UNUSED, const char *reason)
+{
+ if (debug)
+ i_debug("Disconnect: %s", reason);
+}
+
+static int
+test_server_bad_noop_rcpt(void *conn_ctx ATTR_UNUSED,
+ struct smtp_server_cmd_ctx *cmd ATTR_UNUSED,
+ struct smtp_server_recipient *rcpt ATTR_UNUSED)
+{
+ test_assert(FALSE);
+ return 1;
+}
+
+static int
+test_server_bad_noop_data_begin(
+ void *conn_ctx ATTR_UNUSED, struct smtp_server_cmd_ctx *cmd ATTR_UNUSED,
+ struct smtp_server_transaction *trans ATTR_UNUSED,
+ struct istream *data_input ATTR_UNUSED)
+{
+ test_assert(FALSE);
+ return 1;
+}
+
+static void
+test_server_bad_noop(const struct smtp_server_settings *server_set)
+{
+ server_callbacks.conn_disconnect = test_server_bad_noop_disconnect;
+
+ server_callbacks.conn_cmd_rcpt = test_server_bad_noop_rcpt;
+ server_callbacks.conn_cmd_data_begin = test_server_bad_noop_data_begin;
+ test_server_run(server_set);
+}
+
+/* test */
+
+static void test_bad_noop(void)
+{
+ struct smtp_server_settings smtp_server_set;
+
+ test_server_defaults(&smtp_server_set);
+ smtp_server_set.max_client_idle_time_msecs = 1000;
+
+ test_begin("bad NOOP");
+ test_run_client_server(&smtp_server_set,
+ test_server_bad_noop,
+ test_client_bad_noop, 4);
+ test_end();
+}
+
/*
* MAIL workarounds
*/
@@ -2246,6 +2556,8 @@ static void (*const test_functions[])(void) = {
test_bad_ehlo,
test_bad_mail,
test_bad_rcpt,
+ test_bad_vrfy,
+ test_bad_noop,
test_mail_workarounds,
test_rcpt_workarounds,
test_too_many_recipients,

121
SOURCES/dovecot-2.3.10-smtppre.patch Normal file
View File

@ -0,0 +1,121 @@
diff -up dovecot-2.3.8/src/lib-smtp/smtp-address.c.smtppre dovecot-2.3.8/src/lib-smtp/smtp-address.c
--- dovecot-2.3.8/src/lib-smtp/smtp-address.c.smtppre 2019-10-08 10:46:18.000000000 +0200
+++ dovecot-2.3.8/src/lib-smtp/smtp-address.c 2020-05-29 19:11:19.340621409 +0200
@@ -467,7 +467,7 @@ void smtp_address_detail_parse(pool_t po
*detail_r = p+1;
}
- if (address->domain == NULL)
+ if (address->domain == NULL || *address->domain == '\0')
*username_r = user;
else if (strchr(user, '@') == NULL ) {
/* username is just glued to the domain... no SMTP escaping */
@@ -548,7 +548,7 @@ void smtp_address_write(string_t *out,
if (quoted)
str_append_c(out, '\"');
- if (address->domain == NULL)
+ if (address->domain == NULL || *address->domain == '\0')
return;
str_append_c(out, '@');
@@ -587,8 +587,12 @@ void smtp_address_init(struct smtp_addre
const char *localpart, const char *domain)
{
i_zero(address);
+ if (localpart == NULL || *localpart == '\0')
+ return;
+
address->localpart = localpart;
- address->domain = (localpart == NULL ? NULL : domain);
+ if (domain != NULL && *domain != '\0')
+ address->domain = domain;
}
int smtp_address_init_from_msg(struct smtp_address *address,
@@ -597,7 +601,7 @@ int smtp_address_init_from_msg(struct sm
const char *p;
i_zero(address);
- if (msg_addr->mailbox == NULL)
+ if (msg_addr->mailbox == NULL || *msg_addr->mailbox == '\0')
return 0;
/* The message_address_parse() function allows UTF-8 codepoints in
@@ -609,7 +613,8 @@ int smtp_address_init_from_msg(struct sm
}
address->localpart = msg_addr->mailbox;
- address->domain = msg_addr->domain;
+ if (msg_addr->domain != NULL && *msg_addr->domain != '\0')
+ address->domain = msg_addr->domain;
return 0;
}
@@ -617,8 +622,8 @@ struct smtp_address *
smtp_address_clone(pool_t pool, const struct smtp_address *src)
{
struct smtp_address *new;
- size_t size, lpsize, dsize = 0;
- char *data, *localpart, *domain = NULL;
+ size_t size, lpsize = 0, dsize = 0;
+ char *data, *localpart = NULL, *domain = NULL;
if (smtp_address_isnull(src))
return NULL;
@@ -626,17 +631,21 @@ smtp_address_clone(pool_t pool, const st
/* @UNSAFE */
size = sizeof(struct smtp_address);
- lpsize = strlen(src->localpart) + 1;
- size = MALLOC_ADD(size, lpsize);
- if (src->domain != NULL) {
+ if (src->localpart != NULL && *src->localpart != '\0') {
+ lpsize = strlen(src->localpart) + 1;
+ size = MALLOC_ADD(size, lpsize);
+ }
+ if (src->domain != NULL && *src->domain != '\0') {
dsize = strlen(src->domain) + 1;
size = MALLOC_ADD(size, dsize);
}
data = p_malloc(pool, size);
new = (struct smtp_address *)data;
- localpart = PTR_OFFSET(data, sizeof(*new));
- memcpy(localpart, src->localpart, lpsize);
+ if (lpsize > 0) {
+ localpart = PTR_OFFSET(data, sizeof(*new));
+ memcpy(localpart, src->localpart, lpsize);
+ }
if (dsize > 0) {
domain = PTR_OFFSET(data, sizeof(*new) + lpsize);
memcpy(domain, src->domain, dsize);
@@ -681,8 +690,8 @@ smtp_address_clone_temp(const struct smt
return NULL;
new = t_new(struct smtp_address, 1);
- new->localpart = t_strdup(src->localpart);
- new->domain = t_strdup(src->domain);
+ new->localpart = t_strdup_empty(src->localpart);
+ new->domain = t_strdup_empty(src->domain);
return new;
}
@@ -720,7 +729,7 @@ smtp_address_add_detail(pool_t pool, con
new_addr = p_new(pool, struct smtp_address, 1);
new_addr->localpart = p_strconcat(pool,
address->localpart, delim, detail, NULL);
- new_addr->domain = p_strdup(pool, address->domain);
+ new_addr->domain = p_strdup_empty(pool, address->domain);
return new_addr;
}
@@ -737,7 +746,7 @@ smtp_address_add_detail_temp(const struc
new_addr = t_new(struct smtp_address, 1);
new_addr->localpart = t_strconcat(
address->localpart, delim, detail, NULL);
- new_addr->domain = t_strdup(address->domain);
+ new_addr->domain = t_strdup_empty(address->domain);
return new_addr;
}

61
SPECS/dovecot.spec
View File

@ -5,7 +5,7 @@ Name: dovecot
Epoch: 1
Version: 2.3.8
%global prever %{nil}
Release: 2%{?dist}.2
Release: 4%{?dist}
#dovecot itself is MIT, a few sources are PD, pigeonhole is LGPLv2
License: MIT and LGPLv2
Group: System Environment/Daemons
@ -42,20 +42,18 @@ Patch13: dovecot-2.2.36-bigkey.patch
# not sent upstream as proper fix would use dovecot's lib-dcrypt but it introduces
# hard to break circular dependency between lib and lib-dcrypt
Patch14: dovecot-2.3.6-opensslhmac.patch
Patch15: dovecot-2.3.10-CVE_2020_10957p1.patch
Patch16: dovecot-2.3.10-CVE_2020_10957p2.patch
Patch17: dovecot-2.3.10-CVE_2020_10957p3.patch
Patch18: dovecot-2.3.10-CVE_2020_10957p4.patch
Patch19: dovecot-2.3.10-CVE_2020_10957p5.patch
Patch20: dovecot-2.3.10-CVE_2020_10957p6.patch
# from upstream, for dovecot < 2.3.10.1
Patch15: dovecot-2.3.10-smtppre.patch
Patch16: dovecot-2.3.10-CVE_2020_10957,10958,10967.patch
# from upstream, for dovecot <= 2.3.10.1
Patch21: dovecot-2.3.8-CVE_2020_12100prereq.patch
Patch22: dovecot-2.3.8-CVE_2020_12100.patch
Patch23: dovecot-2.3.8-CVE_2020_12100ph.patch
Patch24: dovecot-2.3.8-CVE_2020_12673.patch
Patch25: dovecot-2.3.8-CVE_2020_12674prereq.patch
Patch26: dovecot-2.3.8-CVE_2020_12674.patch
Patch17: dovecot-2.3.8-CVE_2020_12100prereq.patch
Patch18: dovecot-2.3.8-CVE_2020_12100.patch
Patch19: dovecot-2.3.8-CVE_2020_12100ph.patch
Patch20: dovecot-2.3.8-CVE_2020_12673.patch
Patch21: dovecot-2.3.8-CVE_2020_12674prereq.patch
Patch22: dovecot-2.3.8-CVE_2020_12674.patch
Source15: prestartscript
@ -160,19 +158,14 @@ This package provides the development files for dovecot.
%patch11 -p1 -b .aclfix
%patch13 -p1 -b .bigkey
%patch14 -p1 -b .opensslhmac
%patch15 -p1 -b .CVE_2020_10957p1
%patch16 -p1 -b .CVE_2020_10957p2
%patch17 -p1 -b .CVE_2020_10957p3
%patch18 -p1 -b .CVE_2020_10957p4
%patch19 -p1 -b .CVE_2020_10957p5
%patch20 -p1 -b .CVE_2020_10957p6
%patch21 -p1 -b .CVE_2020_12100prereq
%patch22 -p1 -b .CVE_2020_12100
%patch23 -p1 -b .CVE_2020_12100ph
%patch24 -p1 -b .CVE_2020_12673
%patch25 -p1 -b .CVE_2020_12674prereq
%patch26 -p1 -b .CVE_2020_12674
%patch15 -p1 -b .smtppre
%patch16 -p1 -b .CVE_2020_10957,10958,10967
%patch17 -p1 -b .CVE_2020_12100prereq
%patch18 -p1 -b .CVE_2020_12100
%patch19 -p1 -b .CVE_2020_12100ph
%patch20 -p1 -b .CVE_2020_12673
%patch21 -p1 -b .CVE_2020_12674prereq
%patch22 -p1 -b .CVE_2020_12674
pushd dovecot-2*3-pigeonhole-%{pigeonholever}
popd
@ -532,13 +525,17 @@ make check
%{_libdir}/%{name}/dict/libdriver_pgsql.so
%changelog
* Sat Aug 08 2020 Michal Hlavinka <mhlavink@redhat.com> - 1:2.3.8-2.2
- fix CVE-2020-12100 resource exhaustion via deeply nested MIME parts (#1866755)
- fix CVE-2020-12673 out of bound reads in dovecot NTLM implementation (#1866760)
- fix CVE-2020-12674 crash due to assert in RPA implementation (#1866767)
* Fri Aug 07 2020 Michal Hlavinka <mhlavink@redhat.com> - 1:2.3.8-4
- fix CVE-2020-12100 resource exhaustion via deeply nested MIME parts (#1866756)
- fix CVE-2020-12673 out of bound reads in dovecot NTLM implementation (#1866761)
- fix CVE-2020-12674 crash due to assert in RPA implementation (#1866768)
* Fri Jun 05 2020 Michal Hlavinka <mhlavink@redhat.com> - 1:2.3.8-2.1
- fix CVE-2020-10957: malformed NOOP commands leads to DoS (#1840353)
* Mon Jun 01 2020 Michal Hlavinka <mhlavink@redhat.com> - 1:2.3.8-3
- fix CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS (#1840354)
- fix CVE-2020-10958 dovecot: command followed by sufficient number of newlines
leads to use-after-free (#1840357)
- fix CVE-2020-10967 dovecot: sending mail with empty quoted localpart
leads to DoS (#1840356)
* Thu Jan 09 2020 Michal Hlavinka <mhlavink@redhat.com> - 1:2.3.8-2
- fix default attributes for ghost files