| शीर्षक | GPAC GPAC (MP4Box) gpac f1219cde (master, 2026-07-25) Memory Corruption |
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| विवरण | Description:
GPAC MP4Box at commit f1219cde contains an invalid memory read in the BT/BIFS scene parser. When a malformed BIFS command reaches the unknown-command error path, gf_bt_parse_bifs_command calls gf_bt_report with a format string containing %s but does not supply the corresponding string argument. The resulting vsnprintf call treats an invalid value as a string pointer and crashes in __sanitizer::internal_strlen.
Reproduction command:
./bin/gcc/MP4Box -add ../pocs/poc_3798 -new /tmp/out.mp4
Expected result:
AddressSanitizer reports a SEGV caused by a READ memory access in __sanitizer::internal_strlen, reached from gf_bt_report at scene_manager/loader_bt.c:126.
Impact:
A crafted BT/BIFS scene can crash MP4Box and cause denial of service in applications or automated media-processing services that accept untrusted scene files.
PoC:
https://github.com/Ech06/CVE_submit/blob/main/pocs/poc_3798
Issue:
https://github.com/gpac/gpac/issues/3798
Fix:
https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975 |
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| स्रोत | ⚠️ https://github.com/Ech06/CVE_submit/blob/main/gpac_3798.md |
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| उपयोगकर्ता | Ech06 (UID 98792) |
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| सबमिशन | 03/08/2026 04:50 PM (1 महीना पहले) |
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| संयम | 13/09/2026 06:56 AM (1 month later) |
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| स्थिति | स्वीकृत |
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| VulDB प्रविष्टि | 403219 [GPAC तक f1219cde MP4Box loader_bt.c gf_bt_report बफ़र ओवरफ़्लो] |
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| अंक | 20 |
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