DEBIAN-CVE-2026-75904
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-75904
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75904.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-75904
- Upstream
- Published
- 2026-08-18T16:18:22Z
- Modified
- 2026-09-09T08:47:26Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / libmodplug
Package
- Name
- libmodplug
- Purl
- pkg:deb/debian/libmodplug?arch=source&distro=bookworm
Debian:13 / libmodplug
Package
- Name
- libmodplug
- Purl
- pkg:deb/debian/libmodplug?arch=source&distro=trixie
Debian:14 / libmodplug
Package
- Name
- libmodplug
- Purl
- pkg:deb/debian/libmodplug?arch=source&distro=forky