CVEvulnerability
CVE-2021-4235
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-12-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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.
Affected configurations
• yaml project yaml (< 2.2.3)
References
- https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241 Patch, Third Party Advisory
- https://github.com/go-yaml/yaml/pull/375 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html lists.debian.org
- https://pkg.go.dev/vuln/GO-2021-0061 Third Party Advisory
- https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241 Patch, Third Party Advisory
- https://github.com/go-yaml/yaml/pull/375 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html lists.debian.org
- https://pkg.go.dev/vuln/GO-2021-0061 Third Party Advisory