LibTIFF is prone to a heap-based buffer-overflow vulnerability.
An attacker can exploit this issue to cause denial-of-service conditions. Due to the nature of this issue, code-execution may be possible but this has not been confirmed.
LibTIFF 4.0.7 is vulnerable; other versions may also be affected.
Information
Exploit
The researcher who discovered this issue has created a proof-of-concept. Please see the references for more information.