#VU44784 Resource management error in PHP - CVE-2011-1657

Vulnerability identifier: #VU44784

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2011-1657

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The (1) ZipArchive::addGlob and (2) ZipArchive::addPattern functions in ext/zip/php_zip.c in PHP 5.3.6 allow context-dependent attackers to cause a denial of service (application crash) via certain flags arguments, as demonstrated by (a) GLOB_ALTDIRFUNC and (b) GLOB_APPEND.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5.3.6

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External links
https://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
https://securityreason.com/achievement_securityalert/100
https://securityreason.com/securityalert/8342
https://support.apple.com/kb/HT5130
https://svn.php.net/viewvc/?view=revision&revision=310814
https://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/zip/php_zip.c?view=log
https://www.mandriva.com/security/advisories?name=MDVSA-2011:165
https://www.openwall.com/lists/oss-security/2011/07/01/6
https://www.openwall.com/lists/oss-security/2011/07/01/7
https://www.openwall.com/lists/oss-security/2011/07/01/8
https://www.securityfocus.com/archive/1/519385/100/0/threaded
https://www.securityfocus.com/bid/49252
https://bugs.php.net/bug.php?id=54681
https://exchange.xforce.ibmcloud.com/vulnerabilities/69320

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.