CVE-2023-37475

Hamba avro is a go lang encoder/decoder implementation of the avro codec specification. In affected versions a well-crafted string passed to avro's `github.com/hamba/avro/v2.Unmarshal()` can throw a `fatal error: runtime: out of memory` which is unrecoverable and can cause denial of service of the consumer of avro. The root cause of the issue is that avro uses part of the input to `Unmarshal()` to determine the size when creating a new slice and hence an attacker may consume arbitrary amounts of memory which in turn may cause the application to crash. This issue has been addressed in commit `b4a402f4` which has been included in release version `2.13.0`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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://github.com/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290	Patch
https://github.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:avro_project:avro:*:*:*:*:*:go:*:*

History

No history.

Information

Published : 2023-07-17 17:15

Updated : 2023-07-26 21:35

NVD link : CVE-2023-37475

Mitre link : CVE-2023-37475

CVE.ORG link : CVE-2023-37475

JSON object : View

Products Affected

avro_project

avro

CWE

CWE-400

Uncontrolled Resource Consumption

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