| Titre | vgmstream r2117 Resource Consumption |
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| Description | vgmstream contains a CWE-400 vulnerability in parse_mus() in src/meta/mus_acm.c. The .MUS parser reads an attacker-controlled decimal track count with strtol() and immediately uses that value in calloc(file_count, sizeof(char *)) and in subsequent per-entry allocations without validating that the count is positive, reasonably bounded, or consistent with the remaining input. A crafted .MUS playlist can therefore trigger excessive memory allocation before any track entry or companion file is validated, terminating the process or exhausting memory in applications embedding vgmstream.
I re-verified this issue against the latest upstream HEAD commit 79bc65b52cddc61b859679c1c47dc57092872ae1 on 2026-08-21 and confirmed that the vulnerable logic is still present there.
Affected component / root cause: mus_acm:parse_mus-unbounded-file-count-before-entry-validation
CWE: CWE-400
CVSS v3.1 draft: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
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| La source | ⚠️ https://github.com/vgmstream/vgmstream/issues/1993 |
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| Utilisateur | ni-liao (UID 98297) |
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| Soumission | 21/08/2026 09:26 (il y a 27 jours) |
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| Modérer | 17/09/2026 10:17 (27 days later) |
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| Statut | Accepté |
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| Entrée VulDB | 406345 [vgmstream jusqu’à r2117 src/meta/mus_acm.c parse_mus déni de service] |
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| Points | 20 |
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