7.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2024-56171

CVE-2024-56171: libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in...

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2024-56171

CVE-2024-56171:

7.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Vulnerability Intelligence
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Root Cause Analysis

The vulnerable functions were identified directly from the CVE description, which explicitly names them and the file they reside in. The issue is a use-after-free vulnerability triggered by specific XML schema validation scenarios. Without access to the commit diffs, the confidence relies solely on the accuracy of the CVE description. I was unable to fetch commit information due to a tool error, and the GitLab issue did not contain direct commit links either. Therefore, the analysis is based on the textual description of the vulnerability provided in the CVE details and other references. The functions xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables are explicitly mentioned as containing the use-after-free vulnerability within xmlschemas.c

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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