PHP versions 7.2.x below 7.2.9 Out-of-bounds Read Vulnerability
Published on May 23rd, 2020
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