Description
The GetCode_ function in gd_gif_in.c in GD 2.1.1 and earlier, as used in PHP before 5.5.21 and 5.6.x before 5.6.5, allows remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted GIF image that is improperly handled by the gdImageCreateFromGif function.
Remediation
References
Related Vulnerabilities
WordPress Improper Input Validation Vulnerability (CVE-2020-28037)
Moodle Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2018-14630)
Oracle Application Server Other Vulnerability (CVE-2005-2093)
WordPress Permissions, Privileges, and Access Controls Vulnerability (CVE-2010-5106)