ZipArchive segfault with FL_UNCHANGED on empty archive

Bug #53885	ZipArchive segfault with FL_UNCHANGED on empty archive
Submitted:	2011-01-30 23:15 UTC	Modified:	2011-01-30 23:31 UTC
From:	stas@php.net	Assigned:	stas (profile)
Status:	Closed	Package:	Zip Related
PHP Version:	5.3SVN-2011-01-30 (SVN)	OS:	*
Private report:	No	CVE-ID:	None

[2011-01-30 23:15 UTC] stas@php.net

Description:
------------
From Maksymilian Arciemowicz:


PoC1:
php -r '$nx=new
ZipArchive();$nx->open("/dev/null");$nx-
>locateName("a",ZIPARCHIVE::FL_UNCHANGED);'

PoC2:
php -r '$nx=new
ZipArchive();$nx->open("empty.zip");$nx->statName("a",ZIPARCHIVE::FL_UNCHANGED);'


Segfault in _zip_name_locate.

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[2011-01-30 23:30 UTC] stas@php.net

-Status: Open +Status: Closed -Assigned To: +Assigned To: stas

[2011-01-30 23:30 UTC] stas@php.net

This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

[2011-01-30 23:31 UTC] stas@php.net

-Package: Zlib related +Package: Zip Related