Description
When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.
Remediation
References
Related Vulnerabilities
phpMyAdmin Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2018-19969)
WordPress Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2009-3890)
WordPress Plugin WebLibrarian Cross-Site Scripting (3.4.8.6)
WordPress Permissions, Privileges, and Access Controls Vulnerability (CVE-2010-5296)