{"id":"CVE-2018-20546","details":"There is an illegal READ memory access at caca/dither.c (function get_rgba_default) in libcaca 0.99.beta19 for the default bpp case.","modified":"2026-08-07T16:50:38.981437Z","published":"2018-12-28T16:29:04.893Z","related":["SUSE-SU-2019:0770-1","SUSE-SU-2019:2745-1","SUSE-SU-2019:2745-2","openSUSE-SU-2019:1144-1","openSUSE-SU-2024:10927-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"12.04"},{"last_affected":"12.04"},{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"},{"introduced":"18.10"},{"last_affected":"18.10"}],"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux"},{"vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"}],"source":"CPE_STRING"},{"source":"CPE_STRING","vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"34"},{"last_affected":"34"},{"introduced":"35"},{"last_affected":"35"},{"introduced":"36"},{"last_affected":"36"}]},{"extracted_events":[{"introduced":"15.0"},{"last_affected":"15.0"}],"source":"CPE_STRING","vendor_product":"opensuse:leap","cpes":["cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WFGYICNTMNDNMDDUV4G2RYFB5HNJCOV/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PC7EGOEQ5C4OD66ZUJJIIYEXBTZOCMZX/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZSBCRN6EGQJUVOSD4OEEQ6XORHEM2CUL/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00033.html"},{"type":"ADVISORY","url":"https://github.com/cacalabs/libcaca/issues/38"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/01/msg00007.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3860-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3860-2/"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1652622"},{"type":"FIX","url":"https://github.com/cacalabs/libcaca/commit/1022d97496c7899e8641515af363381b31ae2f05"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cacalabs/libcaca","events":[{"introduced":"caae67dce5d72ceceac79468bed47b58ea8e4a29"},{"last_affected":"caae67dce5d72ceceac79468bed47b58ea8e4a29"},{"fixed":"1022d97496c7899e8641515af363381b31ae2f05"}],"database_specific":{"cpe":"cpe:2.3:a:libcaca_project:libcaca:0.99:beta19:*:*:*:*:*:*","extracted_events":[{"introduced":"0.99-beta19"},{"last_affected":"0.99-beta19"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["0.99-beta19","v0.99.beta19"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20546.json","vanir_signatures_modified":"2026-08-07T16:50:38Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["173697194705099104683245377240136433543","127033609259635894559715003375059074023","249858520968027005030518387805073278911","278457499550985249528788813404705222476","26662475878361700816840939041688976160"],"threshold":0.9},"id":"CVE-2018-20546-16db8665","signature_type":"Line","signature_version":"v1","source":"https://github.com/cacalabs/libcaca/commit/1022d97496c7899e8641515af363381b31ae2f05","target":{"file":"caca/dither.c"}}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"}]}