Edit report at https://bugs.php.net/bug.php?id=61124&edit=1

 ID:                 61124
 Updated by:         ras...@php.net
 Reported by:        mangirdas at impresspages dot org
 Summary:            Segmentation fault
 Status:             Open
 Type:               Bug
 Package:            OpenSSL related
 Operating System:   CentOS release 5.7 (Final)
 PHP Version:        5.3.10
 Block user comment: N
 Private report:     N

 New Comment:

Confirmed

It would help to mention that this gives this warning:

Warning: openssl_decrypt(): IV passed is only 4 bytes long, cipher expects an 
IV 
of precisely 16 bytes, padding with \0

which is probably the cause here. The buffer we pass in is not large enough to 
fit the IV.

A quick hack which fixes the segfault:


--- ext/openssl/openssl.c       (revision 323261)
+++ ext/openssl/openssl.c       (working copy)
@@ -4819,7 +4819,7 @@
        free_iv = php_openssl_validate_iv(&iv, &iv_len, 
EVP_CIPHER_iv_length(cipher_type) TSRMLS_CC);
 
        outlen = data_len + EVP_CIPHER_block_size(cipher_type);
-       outbuf = emalloc(outlen + 1);
+       outbuf = emalloc(outlen + 16);
 
        EVP_DecryptInit(&cipher_ctx, cipher_type, NULL, NULL);
        if (password_len > keylen) {

but it obviously isn't the right solution.


Previous Comments:
------------------------------------------------------------------------
[2012-02-17 17:11:09] mangirdas at impresspages dot org

Description:
------------
This function throws a segmentation fault:

openssl_decrypt ('kzo w2RMExUTYQXW2Xzxmg==', 'aes-128-cbc', 'pass', $rawOutput, 
'pass');

Test script:
---------------
<?php
openssl_decrypt ('kzo w2RMExUTYQXW2Xzxmg==', 'aes-128-cbc', 'pass', $rawOutput, 
'pass');

Expected result:
----------------
FALSE, because encrypted string is incorrect.



------------------------------------------------------------------------



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