PHP versions 7.2.x below 7.2.9 Out-of-bounds Read Vulnerability

Summary

A one byte out-of-bounds read, which could potentially lead to information disclosure or crash.

 

 

Credit:

The information has been provided by Thorsten Alteholz

The original article can be found at:https://bugs.php.net/bug.php?id=79282

 


Details

In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.34, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.

 

Vulnerable Systems:

PHP versions 7.2.x below 7.2.9

PHP versions 7.3.x below 7.3.16

PHP versions 7.4.x below 7.4.34

 

CVE Information:

CVE-2020-7064

 

Disclosure Timeline:
Published Date:4/1/2020

 

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