CVE-2021-4235
Medium
Description
Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.
SeverityMedium
CVSS5.5
Exploit probability—
ProductYaml
PublishedDec 27, 2022
First seenDec 27, 2022
How to fix
Update
- yaml_project yaml2.2.3 or later
- gopkg.in/yaml.v22.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yaml_project yaml | v < 2.2.3 | 2.2.3 |
| gopkg.in/yaml.v2Go | v < 2.2.3 | 2.2.3 |
| github.com/go-yaml/yamlGo | v ≤ 2.1.0, No range specified | — |
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