Microsoft ODBC Driver for SQL Server RCE Vulnerability
CVE-2023-36420 Published on October 10, 2023

Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability
Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability

Vendor Advisory NVD

Weakness Type

What is a Double-free Vulnerability?

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.

CVE-2023-36420 has been classified to as a Double-free vulnerability or weakness.


Products Associated with CVE-2023-36420

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Affected Versions

Microsoft SQL Server 2019 (GDR): Microsoft SQL Server 2022 (GDR): Microsoft ODBC Driver 17 for SQL Server on Windows: Microsoft ODBC Driver 17 for SQL Server on Linux: Microsoft ODBC Driver 17 for SQL Server on MacOS: Microsoft ODBC Driver 18 for SQL Server on Windows: Microsoft ODBC Driver 18 for SQL Server on Linux: Microsoft ODBC Driver 18 for SQL Server on MacOS: Microsoft SQL Server 2022 (CU 8): Microsoft SQL Server 2019 (CU 22):

Exploit Probability

EPSS
0.43%
Percentile
62.39%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.