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.
References
| Link | Resource |
|---|---|
| https://github.com/charleskorn/kaml/commit/e18785d043fc6324c81e968aae9764b4b060bc6a | Patch Third Party Advisory |
| https://github.com/charleskorn/kaml/issues/179 | Exploit Patch Third Party Advisory |
| https://github.com/charleskorn/kaml/security/advisories/GHSA-fmm9-3gv8-58f4 | Exploit Third Party Advisory |
Configurations
History
14 Sep 2021, 17:06
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 4.0
v3 : 6.5 |
| CPE | cpe:2.3:a:kaml_project:kaml:*:*:*:*:*:*:*:* | |
| References | (MISC) https://github.com/charleskorn/kaml/commit/e18785d043fc6324c81e968aae9764b4b060bc6a - Patch, Third Party Advisory | |
| References | (MISC) https://github.com/charleskorn/kaml/issues/179 - Exploit, Patch, Third Party Advisory | |
| References | (CONFIRM) https://github.com/charleskorn/kaml/security/advisories/GHSA-fmm9-3gv8-58f4 - Exploit, Third Party Advisory |
07 Sep 2021, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-09-07 20:15
Updated : 2023-12-10 13:55
NVD link : CVE-2021-39194
Mitre link : CVE-2021-39194
CVE.ORG link : CVE-2021-39194
JSON object : View
Products Affected
kaml_project
- kaml
CWE
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')