| शीर्षक | gpac v2.4.0 Out-of-bounds Write |
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| विवरण | When MP4Box imports SRT subtitles through the BIFS scene pipeline (-mp4 <scene>.bt with MuxInfo{textNode,fontNode}), gf_text_import_srt_bifs() converts subtitle text into UTF-8-like output but writes into a fixed stack buffer char szText[2048] without bounds checking. With crafted input (many high-bit bytes), the conversion expands the output and triggers an out-of-bounds write.
UBSan reports:
runtime error: index 2048 out of bounds for type 'char [2048]' inside gf_text_import_srt_bifs(). |
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| स्रोत | ⚠️ https://github.com/gpac/gpac/issues/3425 |
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| उपयोगकर्ता | Kery Qi (UID 94424) |
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| सबमिशन | 12/01/2026 01:57 PM (9 महीनों पहले) |
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| संयम | 25/01/2026 10:58 AM (13 days later) |
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| स्थिति | स्वीकृत |
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| VulDB प्रविष्टि | 342807 [GPAC तक 2.4.0 SRT Subtitle Import text_to_bifs.c gf_text_import_srt_bifs बफ़र ओवरफ़्लो] |
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| अंक | 20 |
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