CVE-2026-96675
alsa-lib through 1.2.16.1 Denial of Service via pcm_multi
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 23, 2026
- Updated
- Sep 23, 2026
- Reserved
- Sep 23, 2026
Description
alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-bounds array read and assertion failure, causing the application to abort.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-129 Improper Validation of Array Index
Affected Products
| Product | Versions |
|---|---|
alsa-libALSA Project |
|
References
- https://github.com/alsa-project/alsa-lib/pull/527issue-trackingpatch
- https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/pcm/pcm_multi.c#L1122-L1131technical-description
- https://github.com/alsa-project/alsa-libproduct
- VulnCheck Advisory: alsa-lib through 1.2.16.1 Denial of Service via pcm_multithird-party-advisory
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