File CVE-2019-10149.patch of Package exim.12268

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File CVE-2019-10149.patch of Package exim.12268

commit d740d2111f189760593a303124ff6b9b1f83453d
Author: Jeremy Harris <jgh146exb@wizmail.org>
Date:   Mon May 27 21:57:31 2019 +0100

Fix CVE-2019-10149

diff --git a/doc/cve-2019-10149 b/doc/cve-2019-10149
new file mode 100644
index 00000000..4a9d3fb6
--- /dev/null
+++ b/doc/cve-2019-10149
@@ -0,0 +1,36 @@
+CVE-2019-10149 Exim 4.87 to 4.91
+================================
+
+We received a report of a possible remote exploit.  Currently there is no
+evidence of an active use of this exploit.
+
+A patch exists already, is being tested, and backported to all
+versions we released since (and including) 4.87.
+
+The severity depends on your configuration.  It depends on how close to
+the standard configuration your Exim runtime configuration is. The
+closer the better.
+
+Exim 4.92 is not vulnerable.
+
+Next steps:
+
+* t0:    Distros will get access to our non-public security Git repo
+         (access is granted based on the SSH keys that are known to us)
+
+* t0+7d: Coordinated Release Date: Distros should push the patched
+         version to their repos. The Exim maintainers will publish
+         the fixed source to the official and public Git repo.
+
+t0    is expected to be 2019-06-04, 10:00 UTC
+t0+7d is expected to be 2019-06-11, 10:00 UTC
+
+
+Timeline
+--------
+
+* 2019-05-27 Report from Qualys to exim-security list
+* 2019-05-27 Patch provided by Jeremy Harris
+* 2019-05-29 CVE-2019-10149 assigned from Qualys via RedHat
+* 2019-06-03 This announcement
+* 2019-06-04 10:00 UTC Grant access to the non-public security Git repo
diff --git a/src/deliver.c b/src/deliver.c
index 59256ac2..45cc0723 100644
--- a/src/deliver.c
+++ b/src/deliver.c
@@ -6227,17 +6227,23 @@ if (process_recipients != RECIP_IGNORE)
 	{
 	uschar * save_local =  deliver_localpart;
 	const uschar * save_domain = deliver_domain;
+	uschar * addr = new->address, * errmsg = NULL;
+	int start, end, dom;
 
-	deliver_localpart = expand_string(
-		      string_sprintf("${local_part:%s}", new->address));
-	deliver_domain =    expand_string(
-		      string_sprintf("${domain:%s}", new->address));
+	if (!parse_extract_address(addr, &errmsg, &start, &end, &dom, TRUE))
+	  log_write(0, LOG_MAIN|LOG_PANIC,
+                "failed to parse address '%.100s': %s\n", addr, errmsg);
+	else
+	  {
+	  deliver_localpart =
+	    string_copyn(addr+start, dom ? (dom-1) - start : end - start);
+	  deliver_domain = dom ? CUS string_copyn(addr+dom, end - dom) : CUS"";
 
-	(void) event_raise(event_action,
-		      US"msg:fail:internal", new->message);
+	  event_raise(event_action, US"msg:fail:internal", new->message);
 
-	deliver_localpart = save_local;
-	deliver_domain =    save_domain;
+	  deliver_localpart = save_local;
+	  deliver_domain = save_domain;
+	  }
 	}
 #endif
       }

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