#VU64275 Deserialization of Untrusted Data in yaml


Published: 2022-06-14

Vulnerability identifier: #VU64275

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28948

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

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

Vendor: The YAML Project

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


External links
http://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.


Latest bulletins with this vulnerability