{"id":"DEBIAN-CVE-2023-49991","details":"Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at synthdata.c.","modified":"2026-09-15T09:02:34.111641014Z","published":"2023-12-12T14:15:07.600Z","upstream":["CVE-2023-49991"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-49991"}],"affected":[{"package":{"name":"espeak-ng","ecosystem":"Debian:12","purl":"pkg:deb/debian/espeak-ng?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.51+dfsg-10+deb12u1"}]}],"versions":["1.51+dfsg-10"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-49991.json"}},{"package":{"name":"espeak-ng","ecosystem":"Debian:13","purl":"pkg:deb/debian/espeak-ng?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.51+dfsg-12"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-49991.json"}},{"package":{"name":"espeak-ng","ecosystem":"Debian:14","purl":"pkg:deb/debian/espeak-ng?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.51+dfsg-12"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-49991.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"}]}