{"id":"ALPINE-CVE-2018-18584","details":"In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.","modified":"2026-03-09T01:12:45.289692Z","published":"2018-10-23T02:29:00.263Z","upstream":["CVE-2018-18584"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-18584"}],"affected":[{"package":{"name":"cabextract","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1","1.6-r2","1.7-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"cabextract","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1","1.6-r2","1.7-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"cabextract","ecosystem":"Alpine:v3.6","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"cabextract","ecosystem":"Alpine:v3.7","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"cabextract","ecosystem":"Alpine:v3.8","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1","1.6-r2"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"cabextract","ecosystem":"Alpine:v3.9","purl":"pkg:apk/alpine/cabextract?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8-r0"}]}],"versions":["1.2-r0","1.2-r1","1.3-r0","1.3-r1","1.4-r0","1.4-r1","1.6-r0","1.6-r1","1.6-r2","1.7-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.6","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.7","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.8","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}},{"package":{"name":"libmspack","ecosystem":"Alpine:v3.9","purl":"pkg:apk/alpine/libmspack?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8_alpha-r0"}]}],"versions":["0.5_alpha-r1","0.7.1_alpha-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2018-18584.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}