Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2, while fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a conditional branch depending on uninitialized data inside `generic_unpack`. This indicates a use of uninitialized memory. The issue can result in undefined behavior and/or a potential crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.
Problem types
CWE-457: Use of Uninitialized Variable
Product status
>= 3.4.0, < 3.4.3
References
github.com/...penexr/security/advisories/GHSA-3h9h-qfvw-98hq
github.com/...penexr/security/advisories/GHSA-3h9h-qfvw-98hq
github.com/user-attachments/files/23024726/archive0.zip
github.com/user-attachments/files/23024736/archive1.zip
github.com/user-attachments/files/23024740/archive2.zip
github.com/user-attachments/files/23024744/archive3.zip
github.com/user-attachments/files/23024746/archive4.zip