CVE-2025-3857

When reading binary Ion data through Amazon.IonDotnet using the RawBinaryReader class, Amazon.IonDotnet does not check the number of bytes read from the underlying stream while deserializing the binary format. If the Ion data is malformed or truncated, this triggers an infinite loop condition that could potentially result in a denial of service. Users should upgrade to Amazon.IonDotnet version 1.3.1 and ensure any forked or derivative code is patched to incorporate the new fixes.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/AWS-2025-009/
https://github.com/amazon-ion/ion-dotnet/releases/tag/v1.3.1
https://github.com/amazon-ion/ion-dotnet/security/advisories/GHSA-gm2p-wf5c-w3pj

Configurations

No configuration.

History

No history.

Information

Published : 2025-04-21 16:15

Updated : 2025-10-14 19:15

NVD link : CVE-2025-3857

Mitre link : CVE-2025-3857

CVE.ORG link : CVE-2025-3857

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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