{"id":"CVE-2019-19203","details":"An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read.","modified":"2026-04-16T01:38:56.696085850Z","published":"2019-11-21T21:15:11.497Z","related":["ALSA-2020:3662","ALSA-2024:0889","SUSE-SU-2022:3327-1","openSUSE-SU-2024:11111-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/"},{"type":"ADVISORY","url":"https://github.com/ManhNDd/CVE-2019-19203"},{"type":"ADVISORY","url":"https://github.com/kkos/oniguruma/issues/163"},{"type":"ADVISORY","url":"https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2"},{"type":"ADVISORY","url":"https://github.com/tarantula-team/CVE-2019-19203"},{"type":"FIX","url":"https://github.com/kkos/oniguruma/issues/163"},{"type":"EVIDENCE","url":"https://github.com/ManhNDd/CVE-2019-19203"},{"type":"EVIDENCE","url":"https://github.com/kkos/oniguruma/issues/163"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kkos/oniguruma","events":[{"introduced":"83375e4d3480d6d9f6fcd6c2f99035e9522ceeae"},{"fixed":"e03900b038a274ee2f1341039e9003875c11e47d"}]}],"versions":["v6.0.0","v6.1.0","v6.1.1","v6.1.2","v6.1.3","v6.2.0","v6.3.0","v6.4.0","v6.5.0","v6.6.0","v6.6.1","v6.7.0","v6.7.1","v6.8.0","v6.8.1","v6.8.2","v6.9.0","v6.9.1","v6.9.2","v6.9.2_rc1","v6.9.2_rc2","v6.9.2_rc3","v6.9.3","v6.9.4_rc1","v6.9.4_rc2","v6.9.4_rc3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-19203.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}