#VU98820 Resource exhaustion in starlette - CVE-2024-47874

Vulnerability identifier: #VU98820

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-2024-47874

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
starlette
Web applications / Modules and components for CMS

Vendor: Encode

Description

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

The vulnerability exists due to application treats multipart/form-data parts without a filename as text form fields and buffers those in byte strings with no size limit. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

starlette: 0.1.0 - 0.39.2

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External links
https://github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw
https://github.com/encode/starlette/commit/fd038f3070c302bff17ef7d173dbb0b007617733

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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.