{"id":"ALPINE-CVE-2023-28484","details":"In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.","modified":"2025-12-03T22:52:24.615353Z","published":"2023-04-24T21:15:09.180Z","upstream":["CVE-2023-28484"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2023-28484"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.4-r0"}]}],"versions":["2.10.0-r0","2.10.1-r0","2.10.2-r0","2.10.2-r1","2.10.3-r0","2.10.3-r1","2.7.2-r0","2.7.3-r0","2.7.6-r0","2.7.6-r1","2.7.6-r2","2.7.6-r3","2.7.7-r0","2.7.7-r1","2.7.7-r2","2.7.7-r3","2.7.7-r4","2.7.8-r0","2.7.8-r1","2.7.8-r2","2.7.8-r4","2.7.8-r5","2.7.8-r6","2.7.8-r7","2.7.8-r8","2.8.0-r0","2.8.0-r1","2.9.0-r0","2.9.0-r1","2.9.0-r2","2.9.0-r3","2.9.1-r0","2.9.1-r1","2.9.1-r2","2.9.10-r0","2.9.10-r1","2.9.10-r2","2.9.10-r3","2.9.10-r4","2.9.10-r5","2.9.10-r6","2.9.10-r7","2.9.12-r0","2.9.12-r1","2.9.12-r2","2.9.12-r3","2.9.13-r0","2.9.14-r0","2.9.14-r1","2.9.2-r0","2.9.2-r1","2.9.2-r2","2.9.3-r0","2.9.4-r0","2.9.4-r1","2.9.4-r2","2.9.4-r3","2.9.4-r4","2.9.5-r0","2.9.6-r0","2.9.6-r2","2.9.7-r0","2.9.7-r1","2.9.8-r0","2.9.8-r1","2.9.8-r2","2.9.9-r0","2.9.9-r1","2.9.9-r2","2.9.9-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28484.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.4-r0"}]}],"versions":["2.10.0-r0","2.10.1-r0","2.10.2-r0","2.10.2-r1","2.10.3-r0","2.10.3-r1","2.10.3-r2","2.7.2-r0","2.7.3-r0","2.7.6-r0","2.7.6-r1","2.7.6-r2","2.7.6-r3","2.7.7-r0","2.7.7-r1","2.7.7-r2","2.7.7-r3","2.7.7-r4","2.7.8-r0","2.7.8-r1","2.7.8-r2","2.7.8-r4","2.7.8-r5","2.7.8-r6","2.7.8-r7","2.7.8-r8","2.8.0-r0","2.8.0-r1","2.9.0-r0","2.9.0-r1","2.9.0-r2","2.9.0-r3","2.9.1-r0","2.9.1-r1","2.9.1-r2","2.9.10-r0","2.9.10-r1","2.9.10-r2","2.9.10-r3","2.9.10-r4","2.9.10-r5","2.9.10-r6","2.9.10-r7","2.9.12-r0","2.9.12-r1","2.9.12-r2","2.9.12-r3","2.9.13-r0","2.9.14-r0","2.9.14-r1","2.9.2-r0","2.9.2-r1","2.9.2-r2","2.9.3-r0","2.9.4-r0","2.9.4-r1","2.9.4-r2","2.9.4-r3","2.9.4-r4","2.9.5-r0","2.9.6-r0","2.9.6-r2","2.9.7-r0","2.9.7-r1","2.9.8-r0","2.9.8-r1","2.9.8-r2","2.9.9-r0","2.9.9-r1","2.9.9-r2","2.9.9-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28484.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.4-r0"}]}],"versions":["2.10.0-r0","2.10.1-r0","2.10.2-r0","2.10.2-r1","2.10.3-r0","2.10.3-r1","2.10.3-r2","2.7.2-r0","2.7.3-r0","2.7.6-r0","2.7.6-r1","2.7.6-r2","2.7.6-r3","2.7.7-r0","2.7.7-r1","2.7.7-r2","2.7.7-r3","2.7.7-r4","2.7.8-r0","2.7.8-r1","2.7.8-r2","2.7.8-r4","2.7.8-r5","2.7.8-r6","2.7.8-r7","2.7.8-r8","2.8.0-r0","2.8.0-r1","2.9.0-r0","2.9.0-r1","2.9.0-r2","2.9.0-r3","2.9.1-r0","2.9.1-r1","2.9.1-r2","2.9.10-r0","2.9.10-r1","2.9.10-r2","2.9.10-r3","2.9.10-r4","2.9.10-r5","2.9.10-r6","2.9.10-r7","2.9.12-r0","2.9.12-r1","2.9.12-r2","2.9.12-r3","2.9.13-r0","2.9.14-r0","2.9.14-r1","2.9.2-r0","2.9.2-r1","2.9.2-r2","2.9.3-r0","2.9.4-r0","2.9.4-r1","2.9.4-r2","2.9.4-r3","2.9.4-r4","2.9.5-r0","2.9.6-r0","2.9.6-r2","2.9.7-r0","2.9.7-r1","2.9.8-r0","2.9.8-r1","2.9.8-r2","2.9.9-r0","2.9.9-r1","2.9.9-r2","2.9.9-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28484.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.4-r0"}]}],"versions":["2.10.0-r0","2.10.1-r0","2.10.2-r0","2.10.2-r1","2.10.3-r0","2.10.3-r1","2.10.3-r2","2.7.2-r0","2.7.3-r0","2.7.6-r0","2.7.6-r1","2.7.6-r2","2.7.6-r3","2.7.7-r0","2.7.7-r1","2.7.7-r2","2.7.7-r3","2.7.7-r4","2.7.8-r0","2.7.8-r1","2.7.8-r2","2.7.8-r4","2.7.8-r5","2.7.8-r6","2.7.8-r7","2.7.8-r8","2.8.0-r0","2.8.0-r1","2.9.0-r0","2.9.0-r1","2.9.0-r2","2.9.0-r3","2.9.1-r0","2.9.1-r1","2.9.1-r2","2.9.10-r0","2.9.10-r1","2.9.10-r2","2.9.10-r3","2.9.10-r4","2.9.10-r5","2.9.10-r6","2.9.10-r7","2.9.12-r0","2.9.12-r1","2.9.12-r2","2.9.12-r3","2.9.13-r0","2.9.14-r0","2.9.14-r1","2.9.2-r0","2.9.2-r1","2.9.2-r2","2.9.3-r0","2.9.4-r0","2.9.4-r1","2.9.4-r2","2.9.4-r3","2.9.4-r4","2.9.5-r0","2.9.6-r0","2.9.6-r2","2.9.7-r0","2.9.7-r1","2.9.8-r0","2.9.8-r1","2.9.8-r2","2.9.9-r0","2.9.9-r1","2.9.9-r2","2.9.9-r3"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28484.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.4-r0"}]}],"versions":["2.10.0-r0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