CyberRota Analysis
AI-GeneratedThe ExifReader library in JavaScript versions prior to 4.40.1 is vulnerable to denial of service attacks due to improper handling of HEIC or AVIF data, which can lead to unchecked reads and application crashes. Attackers can exploit this flaw by supplying malicious data that triggers a RangeError, potentially aborting application requests or worker processes. Developers and organizations using ExifReader should prioritize upgrading to version 4.40.1 to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
ExifReader is a JavaScript Exif information parser. Prior to 4.40.1, ExifReader.load() and the asynchronous file and URL loaders can pass attacker-supplied HEIC or AVIF data to the ISO-BMFF parser in src/image-header-iso-bmff.js, where findMetaBox() and parseBox() accept an eight-byte box header without confirming that fields required by the parsed box remain in the DataView. A valid ftyp box followed by an empty free or unknown box can cause an unchecked full-box version read, while a truncated extended-size box can make getBoxLength() and hasEmptyHighBits() read absent size fields. The resulting RangeError escapes the main parsing path and can abort an application request or worker when parse errors are not defensively caught, causing denial of service. This issue is fixed in version 4.40.1.