Em resumo
- CVE-2023-28118 é uma vulnerabilidade ALTO (CVSS 7.5) que afeta com.charleskorn.kaml:kaml, kaml (kaml project).
- Chance de exploração nos próximos 30 dias (EPSS): 0.97%, maior que 62.3% das vulnerabilidades.
- Correção: atualize para 0.53.0 ou posterior.
Description
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
Acknowledgements
Thank you to @gdude2002 for reporting this issue.
NVD description
kaml provides YAML support for kotlinx.serialization. Prior to version 0.53.0, applications that use kaml to parse untrusted input containing anchors and aliases may consume excessive memory and crash. Version 0.53.0 and later default to refusing to parse YAML documents containing anchors and aliases. There are no known workarounds.
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