{"id":"UBUNTU-CVE-2026-96675","details":"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.","modified":"2026-09-25T06:37:26.495862343Z","published":"2026-09-24T00:00:00Z","upstream":["CVE-2026-96675"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-96675"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-96675"},{"type":"REPORT","url":"https://github.com/alsa-project/alsa-lib/pull/527"},{"type":"REPORT","url":"https://github.com/alsa-project/alsa-lib"},{"type":"REPORT","url":"https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/pcm/pcm_multi.c#L1122-L1131"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-denial-of-service-via-pcm-multi"}],"affected":[{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.27.2-1ubuntu6","1.0.27.2-1ubuntu7","1.0.27.2-3ubuntu1","1.0.27.2-3ubuntu2","1.0.27.2-3ubuntu5","1.0.27.2-3ubuntu6","1.0.27.2-3ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_name":"libasound2","binary_version":"1.0.27.2-3ubuntu7"},{"binary_name":"libasound2-data","binary_version":"1.0.27.2-3ubuntu7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96675.json"}},{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.29-0ubuntu1","1.1.0-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.0-0ubuntu1","binary_name":"libasound2"},{"binary_name":"libasound2-data","binary_version":"1.1.0-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96675.json"}},{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-5","1.1.3-5ubuntu0.1","1.1.3-5ubuntu0.2","1.1.3-5ubuntu0.4","1.1.3-5ubuntu0.5","1.1.3-5ubuntu0.6"],"ecosystem_specific":{"binaries":[{"binary_name":"libasound2","binary_version":"1.1.3-5ubuntu0.6"},{"binary_name":"libasound2-data","binary_version":"1.1.3-5ubuntu0.6"},{"binary_version":"1.1.3-5ubuntu0.6","binary_name":"libasound2-plugin-smixer"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96675.json"}},{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.9-0ubuntu1","1.2.1.2-2ubuntu2","1.2.2-2ubuntu1","1.2.2-2.1","1.2.2-2.1ubuntu1","1.2.2-2.1ubuntu2","1.2.2-2.1ubuntu2.1","1.2.2-2.1ubuntu2.2","1.2.2-2.1ubuntu2.3","1.2.2-2.1ubuntu2.4","1.2.2-2.1ubuntu2.5","1.2.2-2.1ubuntu2.5+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libasound2","binary_version":"1.2.2-2.1ubuntu2.5+esm1"},{"binary_name":"libasound2-data","binary_version":"1.2.2-2.1ubuntu2.5+esm1"},{"binary_version":"1.2.2-2.1ubuntu2.5+esm1","binary_name":"libasound2-plugin-smixer"},{"binary_name":"libatopology2","binary_version":"1.2.2-2.1ubuntu2.5+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96675.json"}},{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.4-1.1ubuntu3","1.2.4-1.1ubuntu4","1.2.5.1-1ubuntu1","1.2.6.1-1ubuntu1","1.2.6.1-1ubuntu1.1","1.2.6.1-1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libasound2","binary_version":"1.2.6.1-1ubuntu1.2"},{"binary_version":"1.2.6.1-1ubuntu1.2","binary_name":"libasound2-data"},{"binary_name":"libasound2-plugin-smixer","binary_version":"1.2.6.1-1ubuntu1.2"},{"binary_version":"1.2.6.1-1ubuntu1.2","binary_name":"libatopology2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96675.json"}},{"package":{"name":"alsa-lib","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/alsa-lib?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.9-2","1.2.10-1","1.2.10-2","1.2.10-3","1.2.10-3build1","1.2.11-1build1","1.2.11-1build2","1.2.11-1ubuntu0.1","1.2.11-1ubuntu0.2","1.2.11-1ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libasound2-data","binary_version":"1.2.11-1ubuntu0.3"},{"binary_name":"libasound2-plugin-smixer","binary_version":"1.2.11-1ubuntu0.3"},{"binary_version":"1.2.11-1ubuntu0.3","binary_name":"libasound2t64"},{"binary_name":"libatopology2t64","binary_version":"1.2.11-1ubuntu0.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/b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