CVEvulnerability
CVE-2026-56109
7.0 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-06-22
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.0 HIGH — CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- Weaknesses
- CWE-415
Description
The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_def() in src/conf.c that allows attackers to corrupt memory by supplying maliciously crafted ALSA configuration text. When parsing nested compound or array configuration blocks, parse_def() fails to check return values before continuing, causing snd_config_delete() to be called twice on the same already-freed node, resulting in a NULL-pointer write or invalid memory read.
Related
Weakness · CWE (1)
- CWE-415 Double Free weakness
References
- https://github.com/alsa-project/alsa-lib/commit/536dd6f8affdf5197c12a63a71c92a70b2833cc0 github.com
- https://github.com/alsa-project/alsa-lib/releases/tag/v1.2.16.1 github.com
- https://lore.kernel.org/alsa-devel/CAGt8pqBU0p2voB+[email protected]/ lore.kernel.org
- https://www.vulncheck.com/advisories/alsa-library-double-free-via-parse-def-in-conf-c www.vulncheck.com