Bug #74510 [NEW]: win32/sendmail.c anchors CC header but not BCC

From: requinix Operating system: Windows PHP version: 7.1.4 Package: Mail related Bug Type: Bug Bug description:win32/sendmail.c anchors CC header but not BCC Description: ------------ In win32/sendmail.c:SendText the code that examines headers looks for CC and BCC for special treatment. CC is anchored to the beginning of a line but BCC is not. If there is an X-*bcc header then it will be recognized as a BCC line and 1. PHP will attempt to RCPT TO the header's value 2. The "X-*" will be merged with the next line (if any) when the header is stripped away. Fix is to tack on a copy of CC's && ((pos1 == headers_lc) || (*(pos1-1) == '\n')) to that one pos1 condition. Test script: --------------- $headers = implode("\r\n", [ "Cc: test+cc@example.com", "X-Test-Cc: line 2", "X-Test-Aabbcc: line 3", "X-Line-4: line 4" ]); mail("test@example.com", "Subject", "Body", $headers); Expected result: ---------------- Recipients: test@example.com, test+cc@example.com Cc: test+cc@example.com X-Test-Cc: line 2 X-Test-Aabbcc: line 3 X-Line-4: line 4 Actual result: -------------- Recipients: test@example.com, test+cc@example.com, line 3 Cc: test+cc@example.com X-Test-Cc: line 2 X-Test-AabX-Line-4: line 4 -- Edit bug report at https://bugs.php.net/bug.php?id=74510&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74510&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74510&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74510&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74510&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74510&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74510&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74510&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74510&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74510&r=support Expected behavior: https://bugs.php.net/fix.php?id=74510&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74510&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74510&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74510&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74510&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74510&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74510&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74510&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74510&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74510&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74510&r=mysqlcfg