CVE-2025-9165 | LibTIFF 4.7.0 tiffcmp tools/tiffcmp.c memory leak (728/729 / Nessus ID 254437)
A vulnerability described as problematic has been identified in LibTIFF 4.7.0. This affects the function _TIFFmallocExt/_TIFFCheckRealloc/TIFFHashSetNew/InitCCITTFax3 of the file tools/tiffcmp.c of the component tiffcmp. Executing manipulation can lead to memory leak.
This vulnerability is tracked as CVE-2025-9165. The attack is restricted to local execution. Moreover, an exploit is present.
There is ongoing doubt regarding the real existence of this vulnerability.
It is best practice to apply a patch to resolve this issue.
A researcher disputes the security impact of this issue, because "this is a memory leak on a command line tool that is about to exit anyway". In the reply the project maintainer declares this issue as "a simple 'bug' when leaving the command line tool and (...) not a security issue at all".