Denial of service in Yaml for the Go language

1) Deserialization of Untrusted Data

EUVDB-ID: #VU64275

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-28948

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

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

The vulnerability exists due to insecure input validation when processing serialized data in the Unmarshal function. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

yaml: 2.0.0 - 3.0.0

CPE2.3

• cpe:2.3:a:the_yaml_project:yaml:2.0.0:*:*:*:*:golang:*:*
• cpe:2.3:a:the_yaml_project:yaml:2.1.0:*:*:*:*:golang:*:*
• cpe:2.3:a:the_yaml_project:yaml:2.1.1:*:*:*:*:golang:*:*

External links

https://github.com/go-yaml/yaml/issues/666

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.