{"id":"UBUNTU-CVE-2026-88386","details":"libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.","modified":"2026-09-25T17:46:08.666847978Z","published":"2026-09-25T00:00:00Z","upstream":["CVE-2026-88386"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-88386"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-88386"},{"type":"REPORT","url":"https://github.com/libsndfile/libsndfile/issues/1150"},{"type":"REPORT","url":"https://github.com/mhlavink/libsndfileci/commit/474e4d328b1e6240b93ec6ed14efb7c6a44bee57"}],"affected":[{"package":{"name":"libsndfile","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.25-7ubuntu1","1.0.25-7ubuntu2","1.0.25-7ubuntu2.1","1.0.25-7ubuntu2.2","1.0.25-7ubuntu2.2+esm1","1.0.25-7ubuntu2.2+esm2","1.0.25-7ubuntu2.2+esm3","1.0.25-7ubuntu2.2+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.25-7ubuntu2.2+esm4","binary_name":"libsndfile1"},{"binary_name":"sndfile-programs","binary_version":"1.0.25-7ubuntu2.2+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.25-9.1","1.0.25-10","1.0.25-10ubuntu0.16.04.1","1.0.25-10ubuntu0.16.04.2","1.0.25-10ubuntu0.16.04.3","1.0.25-10ubuntu0.16.04.3+esm1","1.0.25-10ubuntu0.16.04.3+esm2","1.0.25-10ubuntu0.16.04.3+esm3","1.0.25-10ubuntu0.16.04.3+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"libsndfile1","binary_version":"1.0.25-10ubuntu0.16.04.3+esm4"},{"binary_name":"sndfile-programs","binary_version":"1.0.25-10ubuntu0.16.04.3+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.28-4","1.0.28-4ubuntu0.18.04.1","1.0.28-4ubuntu0.18.04.2","1.0.28-4ubuntu0.18.04.2+esm1","1.0.28-4ubuntu0.18.04.2+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libsndfile1","binary_version":"1.0.28-4ubuntu0.18.04.2+esm2"},{"binary_name":"sndfile-programs","binary_version":"1.0.28-4ubuntu0.18.04.2+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.28-6","1.0.28-7","1.0.28-7ubuntu0.1","1.0.28-7ubuntu0.2","1.0.28-7ubuntu0.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libsndfile1","binary_version":"1.0.28-7ubuntu0.3"},{"binary_name":"sndfile-programs","binary_version":"1.0.28-7ubuntu0.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.31-2","1.0.31-2build1","1.0.31-2ubuntu0.1","1.0.31-2ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.31-2ubuntu0.2","binary_name":"libsndfile1"},{"binary_version":"1.0.31-2ubuntu0.2","binary_name":"sndfile-programs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.2-1","1.2.2-1ubuntu2","1.2.2-1ubuntu3","1.2.2-1ubuntu4","1.2.2-1ubuntu5","1.2.2-1ubuntu5.24.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.2-1ubuntu5.24.04.1","binary_name":"libsndfile1"},{"binary_version":"1.2.2-1ubuntu5.24.04.1","binary_name":"sndfile-programs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}},{"package":{"name":"libsndfile","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libsndfile?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.2-3","1.2.2-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.2-4","binary_name":"libsndfile1"},{"binary_name":"sndfile-programs","binary_version":"1.2.2-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88386.json"}}],"schema_version":"1.9.0","severity":[{"type":"Ubuntu","score":"medium"}]}