#VU110455 Input validation error in PHP - CVE-2007-1286

Vulnerability identifier: #VU110455

Vulnerability risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2007-1286

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Integer overflow in PHP 4.4.4 and earlier allows remote context-dependent attackers to execute arbitrary code via a long string to the unserialize function, which triggers the overflow in the ZVAL reference counter.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 4.4, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 4.4.4

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External links
https://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056506
https://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01086137
https://rhn.redhat.com/errata/RHSA-2007-0154.html
https://rhn.redhat.com/errata/RHSA-2007-0155.html
https://rhn.redhat.com/errata/RHSA-2007-0163.html
https://secunia.com/advisories/24419
https://secunia.com/advisories/24606
https://secunia.com/advisories/24910
https://secunia.com/advisories/24924
https://secunia.com/advisories/24941
https://secunia.com/advisories/24945
https://secunia.com/advisories/25025
https://secunia.com/advisories/25062
https://secunia.com/advisories/25423
https://secunia.com/advisories/25445
https://secunia.com/advisories/25850
https://security.gentoo.org/glsa/glsa-200703-21.xml
https://security.gentoo.org/glsa/glsa-200705-19.xml
https://www.debian.org/security/2007/dsa-1282
https://www.debian.org/security/2007/dsa-1283
https://www.mandriva.com/security/advisories?name=MDKSA-2007:087
https://www.mandriva.com/security/advisories?name=MDKSA-2007:088
https://www.osvdb.org/32771
https://www.php-security.org/MOPB/MOPB-04-2007.html
https://www.securityfocus.com/archive/1/466166/100/0/threaded
https://www.securityfocus.com/bid/22765
https://www.trustix.org/errata/2007/0009/
https://www.vupen.com/english/advisories/2007/1991
https://www.vupen.com/english/advisories/2007/2374
https://exchange.xforce.ibmcloud.com/vulnerabilities/32796
https://issues.rpath.com/browse/RPL-1268
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11575

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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?

Yes. This vulnerability is being exploited in the wild.