Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Esotericsoftware | Yamlbeans | <= 1.15 |
Related Weaknesses (CWE)
References
- https://contrastsecurity.comThird Party Advisory
- https://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.mdExploitThird Party Advisory
- https://github.com/EsotericSoftwareThird Party Advisory
- https://contrastsecurity.comThird Party Advisory
- https://github.com/Contrast-Security-OSS/yamlbeans/blob/main/SECURITY.mdExploitThird Party Advisory
- https://github.com/EsotericSoftwareThird Party Advisory
FAQ
What is CVE-2023-24620?
CVE-2023-24620 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 YAM...
How severe is CVE-2023-24620?
CVE-2023-24620 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-24620?
Check the references section above for vendor advisories and patch information. Affected products include: Esotericsoftware Yamlbeans.