CVE-2018-20573 — MEDIUM (6.5)

Vulnerability Description

The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

CVSS Score

6.5

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Yaml-Cpp Project	Yaml-Cpp	0.6.2

Related Weaknesses (CWE)

CWE-119

References

https://github.com/jbeder/yaml-cpp/issues/655ExploitThird Party Advisory
http://seclists.org/fulldisclosure/2024/Nov/0
https://github.com/jbeder/yaml-cpp/issues/655ExploitThird Party Advisory

FAQ

What is CVE-2018-20573?

CVE-2018-20573 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.

How severe is CVE-2018-20573?

CVE-2018-20573 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-20573?

Check the references section above for vendor advisories and patch information. Affected products include: Yaml-Cpp Project Yaml-Cpp.