#VU110537 Input validation error in PHP - CVE-2002-2215

Vulnerability identifier: #VU110537

Vulnerability risk: Medium

CVSSv4.0: N/A

CVE-ID: CVE-2002-2215

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via an e-mail message with a large number of "To" addresses, which triggers an error in the rfc822_write_address function.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.1, 4.1.1, 4.1.2, 4.2, 4.2.1, 4.2.2

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External links
https://bugs.php.net/bug.php?id=19280
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=175040

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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.