#VU93850 Resource exhaustion in Go programming language - CVE-2024-24791

Vulnerability identifier: #VU93850

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-2024-24791

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

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

The vulnerability exists due to improper handling of "Expect: 100-continue" HTTP requests. A remote attacker can send multiple such requests and consume all available resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.21 rc1 - 1.22.4

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External links
http://go.dev/cl/591255
http://go.dev/issue/67555
http://groups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJ
http://pkg.go.dev/vuln/GO-2024-2963

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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.