#VU79718 Input validation error in laminas diactoros - CVE-2023-29530

Vulnerability identifier: #VU79718

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29530

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
laminas diactoros
Universal components / Libraries / Libraries used by multiple products

Vendor: laminas

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when processing HTTP headers. A remote attacker can a specially crafted HTTP header to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

laminas diactoros: 2.0.0 - 2.0.3, 2.1.0 - 2.19.0, 2.2.0 - 2.25.1, 2.3.0 - 2.3.2, 2.4.0 - 2.4.1, 2.5.0 - 2.5.1, 2.6.0, 2.7.0, 2.8.0, 2.9.0 - 2.9.2

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External links
https://github.com/laminas/laminas-diactoros/security/advisories/GHSA-xv3h-4844-9h36
https://github.com/advisories/GHSA-wxmh-65f7-jcvw
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPW54QK7ISDALPLP2CKODU4ZIVRYS336/

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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.