cve/2023/CVE-2023-24620.md

CVE-2023-24620

Description

An issue was discovered in Esoteric YamlBeans through 1.15. A crafted YAML document is able perform am XML Entity Expansion attack against YamlBeans YamlReader. By exploiting the Anchor feature in YAML, it is possible to generate a small YAML document that, when read, is expanded to a large size, causing CPU and memory consumption, such as a Java Out-of-Memory exception.

POC

Reference

• https://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.md

Github

• https://github.com/fkie-cad/nvd-json-data-feeds