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Bug #77322 PharData::addEmptyDir('/') Possible integer overflow
Submitted: 2018-12-20 10:21 UTC Modified: 2020-12-11 15:57 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: lars at larsegon dot se Assigned: cmb (profile)
Status: Closed Package: PHAR related
PHP Version: 7.1.25 OS: Linux
Private report: No CVE-ID: None
 [2018-12-20 10:21 UTC] lars at larsegon dot se
Description:
------------
When trying to add the empty directory '/' to a phar archive PHP throws a fatal error:
PHP Fatal error:  Possible integer overflow in memory allocation (1 * 18446744073709551615 + 1) in /path/to/my/script.php on line 91

The same action works in ZipArchive, i.e. this works:
$zip = new \ZipArchive;
$zip->open(tempnam(sys_get_temp_dir(), "phptest"));
$zip->addEmptyDir("/");

Test script:
---------------
$tar = new \PharData("/tmp/phptempfile");
$tar->addEmptyDir("/");
// Fatal error Possible Integer overflow


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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2020-12-11 15:57 UTC] cmb@php.net
-Status: Open +Status: Verified -Assigned To: +Assigned To: cmb
 [2020-12-11 15:58 UTC] cmb@php.net
The following pull request has been associated:

Patch Name: Fix #77322: PharData::addEmptyDir('/') Possible integer overflow
On GitHub:  https://github.com/php/php-src/pull/6508
Patch:      https://github.com/php/php-src/pull/6508.patch
 [2020-12-15 10:47 UTC] cmb@php.net
Automatic comment on behalf of cmbecker69@gmx.de
Revision: http://git.php.net/?p=php-src.git;a=commit;h=a53d67ceac301cbd27c4f0f716d4fbcdb7db3407
Log: Fix #77322: PharData::addEmptyDir('/') Possible integer overflow
 [2020-12-15 10:47 UTC] cmb@php.net
-Status: Verified +Status: Closed
 
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