{"id":"UBUNTU-CVE-2021-0561","details":"In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174302683","modified":"2026-04-22T12:44:26.443143Z","published":"2021-06-22T11:15:00Z","related":["USN-5733-1"],"upstream":["CVE-2021-0561"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-0561"},{"type":"REPORT","url":"https://github.com/xiph/flac/commit/e1575e4a7c5157cbf4e4a16dbd39b74f7174c7be"},{"type":"REPORT","url":"https://xiph.org/flac/changelog.html#flac_1.3.4"},{"type":"REPORT","url":"https://android.googlesource.com/platform/external/flac/+/368eb3f5bec249a197c95a95583ff8153aa6a87f"},{"type":"REPORT","url":"https://source.android.com/security/bulletin/pixel/2021-06-01"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5733-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-0561"}],"affected":[{"package":{"name":"flac","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/flac@1.3.0-2ubuntu0.14.04.1+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-2ubuntu0.14.04.1+esm1"}]}],"versions":["1.3.0-1","1.3.0-2","1.3.0-2ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"flac","binary_version":"1.3.0-2ubuntu0.14.04.1+esm1"},{"binary_name":"libflac++6","binary_version":"1.3.0-2ubuntu0.14.04.1+esm1"},{"binary_name":"libflac8","binary_version":"1.3.0-2ubuntu0.14.04.1+esm1"}],"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/2021/UBUNTU-CVE-2021-0561.json"}},{"package":{"name":"flac","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/flac@1.3.1-4ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1-4ubuntu0.1~esm1"}]}],"versions":["1.3.1-4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"flac","binary_version":"1.3.1-4ubuntu0.1~esm1"},{"binary_name":"libflac++6v5","binary_version":"1.3.1-4ubuntu0.1~esm1"},{"binary_name":"libflac8","binary_version":"1.3.1-4ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-0561.json"}},{"package":{"name":"flac","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/flac@1.3.2-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-1ubuntu0.1"}]}],"versions":["1.3.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"flac","binary_version":"1.3.2-1ubuntu0.1"},{"binary_name":"libflac++6v5","binary_version":"1.3.2-1ubuntu0.1"},{"binary_name":"libflac8","binary_version":"1.3.2-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-0561.json"}},{"package":{"name":"flac","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/flac@1.3.3-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-1ubuntu0.1"}]}],"versions":["1.3.3-1","1.3.3-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"flac","binary_version":"1.3.3-1ubuntu0.1"},{"binary_name":"libflac++6v5","binary_version":"1.3.3-1ubuntu0.1"},{"binary_version":"1.3.3-1ubuntu0.1","binary_name":"libflac8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-0561.json"}},{"package":{"name":"flac","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/flac@1.3.3-2ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-2ubuntu0.1"}]}],"versions":["1.3.3-2","1.3.3-2build1","1.3.3-2build2"],"ecosystem_specific":{"binaries":[{"binary_name":"flac","binary_version":"1.3.3-2ubuntu0.1"},{"binary_name":"libflac++6v5","binary_version":"1.3.3-2ubuntu0.1"},{"binary_name":"libflac8","binary_version":"1.3.3-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-0561.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}