7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-36124

CVE-2022-36124: Apache Avro Rust SDK's Reader could consume memory beyond allowed constraints

It is possible for a Reader to consume memory beyond the allowed constraints and thus lead to out of memory on the system. This issue affects Rust applications using Apache Avro Rust SDK prior to 0.14.0 (previously known as avro-rs). Users should update to apache-avro version 0.14.0 which addresses this issue.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-36124

CVE-2022-36124:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
apache-avro	rust	< 0.14.0	0.14.0

Technical Details

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Root Cause Analysis

The vulnerability stems from uncontrolled memory allocation during Avro data block processing. Avro's block-based format includes a header with record count and size. The Reader's read_block function would be responsible for parsing this header and allocating memory for records. Without validation of these values (e.g., maximum allowed records/size), a malicious block with a large count would force the SDK to allocate proportional memory, matching CWE-770's pattern. The high confidence comes from: 1) The vulnerability's direct association with Reader memory consumption 2) The critical role of block reading in Avro's architecture 3) The CWE-770 alignment with unvalidated block size/count parsing.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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