| 标题 | vgmstream r2117 Resource Consumption |
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| 描述 | 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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| 来源 | ⚠️ https://github.com/vgmstream/vgmstream/issues/1993 |
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| 用户 | ni-liao (UID 98297) |
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| 提交 | 2026-08-21 09時26分 (28 日前) |
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| 管理 | 2026-09-17 10時17分 (27 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 406345 [vgmstream 直到 r2117 src/meta/mus_acm.c parse_mus 拒绝服务] |
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| 积分 | 20 |
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