Vulnerability Details CVE-2021-39194
kaml is an open source implementation of the YAML format with support for kotlinx.serialization. In affected versions attackers that could provide arbitrary YAML input to an application that uses kaml could cause the application to endlessly loop while parsing the input. This could result in resource starvation and denial of service. This only affects applications that use polymorphic serialization with the default tagged polymorphism style. Applications using the property polymorphism style are not affected. YAML input for a polymorphic type that provided a tag but no value for the object would trigger the issue. Version 0.35.3 or later contain the fix for this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.4%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.0
References
- https://github.com/charleskorn/kaml/commit/e18785d043fc6324c81e968aae9764b4b060bc6a
- https://github.com/charleskorn/kaml/issues/179
- https://github.com/charleskorn/kaml/security/advisories/GHSA-fmm9-3gv8-58f4
- https://github.com/charleskorn/kaml/commit/e18785d043fc6324c81e968aae9764b4b060bc6a
- https://github.com/charleskorn/kaml/issues/179
- https://github.com/charleskorn/kaml/security/advisories/GHSA-fmm9-3gv8-58f4
Products affected by CVE-2021-39194
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cpe:2.3:a:kaml_project:kaml:-
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cpe:2.3:a:kaml_project:kaml:0.1.0
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cpe:2.3:a:kaml_project:kaml:0.10.0
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cpe:2.3:a:kaml_project:kaml:0.11.0
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cpe:2.3:a:kaml_project:kaml:0.12.0
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cpe:2.3:a:kaml_project:kaml:0.13.0
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cpe:2.3:a:kaml_project:kaml:0.14.0
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cpe:2.3:a:kaml_project:kaml:0.15.0
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cpe:2.3:a:kaml_project:kaml:0.16.0
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cpe:2.3:a:kaml_project:kaml:0.16.1
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cpe:2.3:a:kaml_project:kaml:0.17.0
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cpe:2.3:a:kaml_project:kaml:0.18.0
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cpe:2.3:a:kaml_project:kaml:0.18.1
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cpe:2.3:a:kaml_project:kaml:0.19.0
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cpe:2.3:a:kaml_project:kaml:0.2.0
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cpe:2.3:a:kaml_project:kaml:0.2.1
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cpe:2.3:a:kaml_project:kaml:0.20.0
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cpe:2.3:a:kaml_project:kaml:0.21.0
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cpe:2.3:a:kaml_project:kaml:0.22.0
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cpe:2.3:a:kaml_project:kaml:0.23.0
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cpe:2.3:a:kaml_project:kaml:0.24.0
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cpe:2.3:a:kaml_project:kaml:0.25.0
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cpe:2.3:a:kaml_project:kaml:0.26.0
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cpe:2.3:a:kaml_project:kaml:0.27.0
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cpe:2.3:a:kaml_project:kaml:0.28.0
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cpe:2.3:a:kaml_project:kaml:0.28.1
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cpe:2.3:a:kaml_project:kaml:0.28.2
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cpe:2.3:a:kaml_project:kaml:0.28.3
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cpe:2.3:a:kaml_project:kaml:0.29.0
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cpe:2.3:a:kaml_project:kaml:0.3.0
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cpe:2.3:a:kaml_project:kaml:0.30.0
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cpe:2.3:a:kaml_project:kaml:0.31.0
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cpe:2.3:a:kaml_project:kaml:0.32.0
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cpe:2.3:a:kaml_project:kaml:0.33.0
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cpe:2.3:a:kaml_project:kaml:0.34.0
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cpe:2.3:a:kaml_project:kaml:0.35.0
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cpe:2.3:a:kaml_project:kaml:0.35.1
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cpe:2.3:a:kaml_project:kaml:0.35.2
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cpe:2.3:a:kaml_project:kaml:0.4.0
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cpe:2.3:a:kaml_project:kaml:0.5.0
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cpe:2.3:a:kaml_project:kaml:0.6.0
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cpe:2.3:a:kaml_project:kaml:0.7.0
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cpe:2.3:a:kaml_project:kaml:0.8.0
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cpe:2.3:a:kaml_project:kaml:0.9.0