high7.5
CVE-2023-28118
kaml has potential denial of service while parsing input with anchors and aliases
Impact
### Impact Applications that use kaml to parse untrusted input containing anchors and aliases may consume excessive memory and crash. ### Patches Version 0.53.0 and later default to refusing to parse YAML documents containing anchors and aliases. ### Workarounds None. ### References Wikipedia has an explanation of this class of vulnerability: [billion laughs attack](https://en.wikipedia.org/wiki/Billion_laughs_attack) ### Acknowledgements Thank you to @gdude2002 for reporting this issue.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.charleskorn.kaml:kaml | < 0.53.0 | 0.53.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Kaml Project | Kaml | before 0.53.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/charleskorn/kaml/commit/5f82a2d7e00bfc307afca05d1dc4d7c50593531a
- https://github.com/charleskorn/kaml/releases/tag/0.53.0
- https://github.com/charleskorn/kaml/security/advisories/GHSA-c24f-2j3g-rg48
- https://github.com/advisories/GHSA-c24f-2j3g-rg48
- https://nvd.nist.gov/vuln/detail/CVE-2023-28118