{"id":"UBUNTU-CVE-2021-39247","details":"Zint Barcode Generator before 2.10.0 has a one-byte buffer over-read, related to is_last_single_ascii in code1.c, and rs_encode_uint in reedsol.c.","modified":"2026-04-22T12:59:47.517612Z","published":"2021-08-17T21:15:00Z","upstream":["CVE-2021-39247"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-39247"},{"type":"REPORT","url":"https://sourceforge.net/p/zint/code/ci/9b02cd52214e80f945bff41fc94bc1e17e15810c/"},{"type":"REPORT","url":"https://sourceforge.net/p/zint/tickets/232/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-39247"}],"affected":[{"package":{"name":"zint","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/zint@2.10.0-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.1-1.1","2.10.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libzint2.10","binary_version":"2.10.0-1"},{"binary_name":"zint","binary_version":"2.10.0-1"},{"binary_name":"zint-qt","binary_version":"2.10.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39247.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}