Denial of service in Go programming language HTTP/2 implementation

1) Resource exhaustion

EUVDB-ID: #VU88184

Risk: Medium

CVSSv4.0: 7.7 [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:P/U:Green]

CVE-ID: CVE-2023-45288

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient limitations placed on the amount of CONTINUATION frames that can be sent within a single HTTP/2 stream. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1 - 1.22.1

CPE2.3

• cpe:2.3:a:google:golang:*:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:google:golang:1.2:*:*:*:*:*:*:*

External links

https://go.dev/issue/65051
https://go.dev/cl/576155
https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M
https://pkg.go.dev/vuln/GO-2024-2687

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. However, proof of concept for this vulnerability is available.