DjVuLibre Disaster: Integer Overflow Bug Threatens Digital Doodles!
Attention all pixel pushers: DjVuLibre 3.5.29’s IW44EncodeCodec has a bug scarier than an unexpected family visit. A negative left shift can trigger undefined behavior, causing memory corruption or a crash. Yes, your images might just be plotting their revenge. Handle with care!
Hot Take:
Well, it seems like the DjVuLibre developers have left us with a “negative shift” in our confidence! Who knew that a library dedicated to compressing documents could also compress application stability into a tiny ball of undefined behavior? Time to patch faster than you can say “integer overflow!”
Key Points:
- DjVuLibre version 3.5.29 is vulnerable to an integer overflow.
- The vulnerability resides in the IW44EncodeCodec.cpp component.
- Crafted PPM inputs can trigger the overflow, leading to undefined behavior.
- Potential outcomes include memory corruption, application crashes, and information disclosure.
- The issue was highlighted in the Full Disclosure mailing list by Ron E.
Already a member? Log in here