CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
libmodplug through 0.8.9.1 contains an out-of-bounds read in pat_smplooped in src/load_pat.cpp. The function validates only the upper bound of its sample index against MAXSMP and then subtracts one before indexing the 191-byte static array pat_loops, so an index of zero reads pat_loops[-1], one byte before the array. The index is the smpno field of a parsed MIDI event, which is initialised to zero and only later overwritten from a program-change parameter, so an event reaching the note test before an instrument is assigned carries zero. A 32-byte MIDI file supplied to the library's public ModPlug_Load entry point drives the path through CSoundFile::Create, CSoundFile::ReadMID, and MID_ReadPatterns to the read. The byte read out of bounds determines whether a note event is treated as looping, so adjacent static storage influences playback state.
Засегнати продукти
- Konstanty Bialkowski libmodplug: до 0.8.9.1
Вид слабост
История
- 18 август 2026 Публикувано
Други уязвимости в Konstanty Bialkowski libmodplug
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-75904
- https://nvd.nist.gov/vuln/detail/CVE-2026-75904
- https://github.com/Konstanty/libmodplug/issues/103
- https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_pat.cpp#L213-L217
- https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_mid.cpp#L829
- https://github.com/Konstanty/libmodplug
- https://www.vulncheck.com/advisories/libmodplug-out-of-bounds-read-in-pat-smplooped-via-crafted-midi-file