Vulnerability identifier: #VU61599

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-2022-21698

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
client_golang
Universal components / Libraries / Libraries used by multiple products

Vendor: Prometheus

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 within method label cardinality. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

client_golang: 1.11.0

---

External links
http://github.com/prometheus/client_golang/pull/962
http://github.com/prometheus/client_golang/releases/tag/v1.11.1
http://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7p
http://github.com/prometheus/client_golang/pull/987

---

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.