Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-37475

7.5 · HIGH

Hamba avro is a go lang encoder/decoder implementation of the avro codec specification.

Published Jul 17, 2023CWE-400EPSS 0.96%

Overview

CVE-2023-37475 is a high-severity vulnerability. It was published on July 17, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290GitHubgithub.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45GitHubgithub.com/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290GitHubgithub.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45

How CyberStrike helps

Frequently asked questions

What is CVE-2023-37475?

CVE-2023-37475 is a high-severity vulnerability. It was published on July 17, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-37475?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-37475?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-37475?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-37475 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999