Vulnerability identifier: #VU67663

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-2022-38751

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Snakeyaml
/

Vendor: Snakeyaml Project

Description

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

The vulnerability exists due to a boundary error when processing untrusted YAML input. A remote attacker can pass a specially crafted YAML file to the application, trigger out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Snakeyaml: 1.1 - 1.30

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External links
http://bitbucket.org/snakeyaml/snakeyaml/issues/530/stackoverflow-oss-fuzz-47039
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47039

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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.