{"id":"UBUNTU-CVE-2020-11958","details":"re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme.","modified":"2026-02-04T03:48:54.505114Z","published":"2020-04-21T01:15:00Z","related":["USN-4338-1","USN-4338-2"],"upstream":["CVE-2020-11958"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11958"},{"type":"REPORT","url":"http://blogs.gentoo.org/ago/2020/04/19/re2c-heap-overflow-in-scannerfill-scanner-cc/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4338-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4338-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-11958"}],"affected":[{"package":{"name":"re2c","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/re2c@1.3-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3-1ubuntu0.1"}]}],"versions":["1.2.1-1","1.3-1","1.3-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"re2c","binary_version":"1.3-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11958.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}