Vulnerability Monitor

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CVE-2021-4235

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.

Published

2022-12-27T22:15:11.960

Last Modified

2025-04-11T17:15:35.497

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	yaml_project	yaml	< 2.2.3	Yes

References

https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241 Patch, Third Party Advisory ([email protected])
https://github.com/go-yaml/yaml/pull/375 Exploit, Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html ([email protected])
https://pkg.go.dev/vuln/GO-2021-0061 Third Party Advisory ([email protected])
https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/go-yaml/yaml/pull/375 Exploit, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html (af854a3a-2127-422b-91ae-364da2661108)
https://pkg.go.dev/vuln/GO-2021-0061 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)