488a048fdd
- add patch-cve-2022-3559 (fixes CVE-2022-3559, bsc#1204427, Bug 2915) OBS-URL: https://build.opensuse.org/request/show/1029726 OBS-URL: https://build.opensuse.org/package/show/server:mail/exim?expand=0&rev=268
128 lines
3.9 KiB
Plaintext
128 lines
3.9 KiB
Plaintext
diff -ru a/src/exim.c b/src/exim.c
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--- a/src/exim.c 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/exim.c 2022-10-18 13:38:30.366261000 +0200
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@@ -2001,8 +2001,6 @@
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regex_must_compile(US"^[A-Za-z0-9_/.-]*$", FALSE, TRUE);
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#endif
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-for (i = 0; i < REGEX_VARS; i++) regex_vars[i] = NULL;
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-
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/* If the program is called as "mailq" treat it as equivalent to "exim -bp";
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this seems to be a generally accepted convention, since one finds symbolic
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links called "mailq" in standard OS configurations. */
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@@ -6084,7 +6082,7 @@
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deliver_localpart_data = deliver_domain_data =
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recipient_data = sender_data = NULL;
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acl_var_m = NULL;
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- for(int i = 0; i < REGEX_VARS; i++) regex_vars[i] = NULL;
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+ regex_vars_clear();
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store_reset(reset_point);
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}
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diff -ru a/src/expand.c b/src/expand.c
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--- a/src/expand.c 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/expand.c 2022-10-18 13:38:30.368690000 +0200
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@@ -1873,7 +1873,7 @@
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return node ? node->data.ptr : strict_acl_vars ? NULL : US"";
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}
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-/* Handle $auth<n> variables. */
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+/* Handle $auth<n>, $regex<n> variables. */
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if (Ustrncmp(name, "auth", 4) == 0)
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{
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diff -ru a/src/functions.h b/src/functions.h
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--- a/src/functions.h 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/functions.h 2022-10-18 13:39:21.953979000 +0200
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@@ -438,6 +438,7 @@
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extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
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extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
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extern const pcre2_code *regex_must_compile(const uschar *, BOOL, BOOL);
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+extern void regex_vars_clear(void);
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extern void retry_add_item(address_item *, uschar *, int);
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extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
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uschar **, uschar **);
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Only in b/src: functions.h.rej
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diff -ru a/src/globals.c b/src/globals.c
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--- a/src/globals.c 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/globals.c 2022-10-18 13:46:22.093392000 +0200
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@@ -1315,7 +1315,7 @@
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#endif
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const pcre2_code *regex_ismsgid = NULL;
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const pcre2_code *regex_smtp_code = NULL;
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-const uschar *regex_vars[REGEX_VARS];
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+const uschar *regex_vars[REGEX_VARS] = { 0 };
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#ifdef WHITELIST_D_MACROS
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const pcre2_code *regex_whitelisted_macro = NULL;
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#endif
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Only in b/src: globals.c.rej
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diff -ru a/src/regex.c b/src/regex.c
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--- a/src/regex.c 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/regex.c 2022-10-18 13:43:13.041903000 +0200
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@@ -96,18 +96,26 @@
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return FAIL;
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}
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+/* reset expansion variables */
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+void
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+regex_vars_clear(void)
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+{
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+regex_match_string = NULL;
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+for (int i = 0; i < REGEX_VARS; i++) regex_vars[i] = NULL;
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+}
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+
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+
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int
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-regex(const uschar **listptr)
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+regex(const uschar ** listptr)
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{
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unsigned long mbox_size;
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-FILE *mbox_file;
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-pcre_list *re_list_head;
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-uschar *linebuffer;
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+FILE * mbox_file;
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+pcre_list * re_list_head;
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+uschar * linebuffer;
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long f_pos = 0;
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int ret = FAIL;
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-/* reset expansion variable */
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-regex_match_string = NULL;
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+regex_vars_clear();
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if (!mime_stream) /* We are in the DATA ACL */
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{
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@@ -169,14 +177,13 @@
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int
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mime_regex(const uschar **listptr)
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{
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-pcre_list *re_list_head = NULL;
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-FILE *f;
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-uschar *mime_subject = NULL;
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+pcre_list * re_list_head = NULL;
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+FILE * f;
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+uschar * mime_subject = NULL;
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int mime_subject_len = 0;
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int ret;
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-/* reset expansion variable */
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-regex_match_string = NULL;
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+regex_vars_clear();
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/* precompile our regexes */
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if (!(re_list_head = compile(*listptr)))
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diff -ru a/src/smtp_in.c b/src/smtp_in.c
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--- a/src/smtp_in.c 2022-06-23 15:41:10.000000000 +0200
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+++ b/src/smtp_in.c 2022-10-18 13:38:30.372819000 +0200
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@@ -2157,8 +2157,10 @@
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#ifdef SUPPORT_I18N
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message_smtputf8 = FALSE;
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#endif
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+regex_vars_clear();
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body_linecount = body_zerocount = 0;
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+lookup_value = NULL; /* Can be set by ACL */
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sender_rate = sender_rate_limit = sender_rate_period = NULL;
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ratelimiters_mail = NULL; /* Updated by ratelimit ACL condition */
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/* Note that ratelimiters_conn persists across resets. */
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