CVE-2026-96674
alsa-lib through 1.2.16.1 Integer Overflow via Topology File
- 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 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | VulnCheck |
| 3.1 | 4.4 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L | VulnCheck |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
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/topology/ctl.c#L1316-L1326technical-description
- https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1420-L1430technical-description
- https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1511-L1521technical-description
- https://github.com/alsa-project/alsa-libproduct
- VulnCheck Advisory: alsa-lib through 1.2.16.1 Integer Overflow via Topology Filethird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.