{"id":"UBUNTU-CVE-2026-32836","details":"dr_libs dr_flac.h version 0.13.3 and earlier (fixed in commits fefced4, 4f5a4cd, and 663239a) contain an uncontrolled memory allocation vulnerability in drflac__read_and_decode_metadata() that allows attackers to trigger excessive memory allocation by supplying crafted PICTURE metadata blocks. Attackers can exploit attacker-controlled mimeLength and descriptionLength fields to cause denial of service through memory exhaustion when processing FLAC streams with metadata callbacks.","modified":"2026-06-24T11:01:38.565802937Z","published":"2026-03-17T20:16:00Z","upstream":["CVE-2026-32836"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-32836"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-32836"},{"type":"REPORT","url":"https://github.com/mackron/dr_libs/issues/298"},{"type":"REPORT","url":"https://github.com/mackron/dr_libs/commit/663239a3d0460c33bd5b6e5166edcb404e3df676"},{"type":"REPORT","url":"https://github.com/mackron/dr_libs/commit/fefced4a64adfb1a68a2d31d882366e56096dee8"},{"type":"REPORT","url":"https://github.com/mackron/dr_libs/commit/4f5a4cd3b57564d969443c580c75857e039f100a"}],"affected":[{"package":{"name":"libchdr","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libchdr?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20230918.9108f34+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libchdr0","binary_version":"0.0~git20230918.9108f34+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32836.json"}},{"package":{"name":"libchdr","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libchdr?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20240929.aaca599+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libchdr0","binary_version":"0.0~git20240929.aaca599+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32836.json"}},{"package":{"name":"libchdr","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libchdr?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20240929.aaca599+dfsg-1","0.0~git20250608.8bba774+dfsg-1","0.0~git20250608.8bba774+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.0~git20250608.8bba774+dfsg-2","binary_name":"libchdr0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32836.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}