Uninitialized Memory Disclosure in FFmpeg TGA Decoder

Executive Summary

This vulnerability is an uninitialized memory disclosure issue in FFmpeg versions up to 9.0.2. It occurs in the targa_decode_rle() function in libavcodec/targa.c due to missing checks on packet length. Attackers can exploit this by providing truncated RLE-compressed TGA images, causing decoded frames to leak leftover heap buffer data and uninitialized stack bytes.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability involves uninitialized memory disclosure in FFmpeg when processing TGA images. Detection requires checking for FFmpeg versions through 9.0.2 and analyzing TGA image processing logs for truncated RLE-compressed inputs.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability could allow attackers to access sensitive memory contents, potentially exposing confidential data stored in memory. It may lead to information disclosure, where unauthorized parties could view data they should not have access to.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA due to unauthorized data exposure. GDPR requires protecting personal data, and HIPAA mandates safeguarding protected health information. A memory disclosure could violate these regulations, resulting in legal penalties and loss of trust.

Useful 0 Not Useful 0

Mitigation Strategies

Upgrade FFmpeg to a version beyond 9.0.2 to address the uninitialized memory disclosure issue. Review and update image processing pipelines to validate TGA file integrity before decoding.

Useful 0 Not Useful 0