Vulnerability identifier: #VU83546

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45142

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
otelhttp
Universal components / Libraries / Programming Languages & Components

Vendor: OpenTelemetry

Description

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

The vulnerability exists due to incorrect processing of HTTP header User-Agent and HTTP method. A remote attacker can send multiple requests with long randomly generated HTTP methods or/and User agents and consume memory resources, leading to a denial of service condition.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

otelhttp: 0.12.0 - 0.43.0

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External links
http://github.com/open-telemetry/opentelemetry-go-contrib/security/advisories/GHSA-rcjv-mgp8-qvmr

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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.