alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
Advisories

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Fixes

Solution

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Workaround

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History

Wed, 23 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
Description alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
Title alsa-lib through 1.2.16.1 Integer Overflow via Topology File
First Time appeared Alsa-project
Alsa-project alsa-lib
Weaknesses CWE-190
CPEs cpe:2.3:a:alsa-project:alsa-lib:*:*:*:*:*:*:*:*
Vendors & Products Alsa-project
Alsa-project alsa-lib
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-23T15:35:11.672Z

Reserved: 2026-09-23T15:10:28.509Z

Link: CVE-2026-96674

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-23T16:16:50.350

Modified: 2026-09-23T16:16:50.350

Link: CVE-2026-96674

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T16:30:07Z

Weaknesses