CVE-2021-4235
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| gopkg.in/yaml.v2 | gopkg.in/yaml.v2 | 0 < 2.2.3 | affected |
Weaknesses
- CWE 400: Uncontrolled Resource Consumption
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/go-yaml/yaml/pull/375
- https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241
- https://pkg.go.dev/vuln/GO-2021-0061
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://github.com/go-yaml/yaml/pull/375
- https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241
- https://pkg.go.dev/vuln/GO-2021-0061
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
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