1 CVE-2015-2331

     2 Community BUG:

     3 https://bugs.php.net/bug.php?id=69253

     4 Community CODE:

     5 http://git.php.net/?p=php-src.git;a=commit;h=ef8fc4b53d92fbfcd8ef1abbd6f2f5fe2c4a11e5

     6 Below is the community patch.

     7 

     8 

     9 From ef8fc4b53d92fbfcd8ef1abbd6f2f5fe2c4a11e5 Mon Sep 17 00:00:00 2001

    10 From: Stanislav Malyshev <[email protected]>

    11 Date: Tue, 17 Mar 2015 21:59:56 -0700

    12 Subject: [PATCH] Fix bug #69253 - ZIP Integer Overflow leads to writing past

    13  heap boundary

    14 

    15 ---

    16  NEWS                     | 4 ++++

    17  ext/zip/lib/zip_dirent.c | 2 +-

    18  2 files changed, 5 insertions(+), 1 deletion(-)

    19 

    20 diff --git a/ext/zip/lib/zip_dirent.c b/ext/zip/lib/zip_dirent.c

    21 index b9dac5c..0090801 100644

    22 --- a/ext/zip/lib/zip_dirent.c

    23 +++ b/ext/zip/lib/zip_dirent.c

    24 @@ -101,7 +101,7 @@ _zip_cdir_new(int nentry, struct zip_error *error)

    25  	return NULL;

    26      }

    27  

    28 -    if ((cd->entry=(struct zip_dirent *)malloc(sizeof(*(cd->entry))*nentry))

    29 +    if ( nentry > ((size_t)-1)/sizeof(*(cd->entry)) || (cd->entry=(struct zip_dirent *)malloc(sizeof(*(cd->entry))*(size_t)nentry))

    30  	== NULL) {

    31  	_zip_error_set(error, ZIP_ER_MEMORY, 0);

    32  	free(cd);

    33 -- 

    34 2.1.4

    35