CVE-2018-20573

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 v3.0

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

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

2.54% chance of exploitation in the next 30 days, 84th percentile

Published

2018-12-28

Updated

2025-11-03

Proof-of-concept exploits (1)

• jbeder/yaml-cpp/issues/655

References

• CVE Record
• NVD entry

Related

• CVE-2017-11692
• CVE-2018-20574
• CVE-2019-6285
• CVE-2019-6292
• CVE-2018-20572
• CVE-2018-20570