{"id":"UBUNTU-CVE-2020-23903","details":"A Divide by Zero vulnerability in the function static int read_samples of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file.","modified":"2026-04-22T14:12:46.475873Z","published":"2021-11-10T22:15:00Z","related":["USN-5280-1"],"upstream":["CVE-2020-23903"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-23903"},{"type":"REPORT","url":"https://github.com/xiph/speex/issues/13"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5280-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-23903"}],"affected":[{"package":{"name":"speex","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/speex@1.2~rc1.2-1ubuntu1+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2~rc1.2-1ubuntu1+esm1"}]}],"versions":["1.2~rc1.2-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2~rc1.2-1ubuntu1+esm1","binary_name":"libspeex1"},{"binary_version":"1.2~rc1.2-1ubuntu1+esm1","binary_name":"libspeexdsp1"},{"binary_version":"1.2~rc1.2-1ubuntu1+esm1","binary_name":"speex"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-23903.json"}},{"package":{"name":"speex","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/speex@1.2~rc1.2-1ubuntu2.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2~rc1.2-1ubuntu2.1"}]}],"versions":["1.2~rc1.2-1ubuntu1","1.2~rc1.2-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2~rc1.2-1ubuntu2.1","binary_name":"libspeex1"},{"binary_version":"1.2~rc1.2-1ubuntu2.1","binary_name":"libspeexdsp1"},{"binary_version":"1.2~rc1.2-1ubuntu2.1","binary_name":"speex"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-23903.json"}},{"package":{"name":"speex","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/speex@1.2~rc1.2-1.1ubuntu1.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2~rc1.2-1.1ubuntu1.20.04.1"}]}],"versions":["1.2~rc1.2-1ubuntu2","1.2~rc1.2-1.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2~rc1.2-1.1ubuntu1.20.04.1","binary_name":"libspeex1"},{"binary_version":"1.2~rc1.2-1.1ubuntu1.20.04.1","binary_name":"libspeexdsp1"},{"binary_version":"1.2~rc1.2-1.1ubuntu1.20.04.1","binary_name":"speex"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-23903.json"}},{"package":{"name":"speex","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/speex@1.2~rc1.2-1.1ubuntu3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2~rc1.2-1.1ubuntu3"}]}],"versions":["1.2~rc1.2-1.1ubuntu1","1.2~rc1.2-1.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2~rc1.2-1.1ubuntu3","binary_name":"libspeex1"},{"binary_version":"1.2~rc1.2-1.1ubuntu3","binary_name":"libspeexdsp1"},{"binary_version":"1.2~rc1.2-1.1ubuntu3","binary_name":"speex"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-23903.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}