{"id":"ALPINE-CVE-2021-3517","details":"There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.","modified":"2026-09-15T08:17:46.667147119Z","published":"2021-05-19T14:15:07.553Z","upstream":["CVE-2021-3517"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-3517"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.9-r5"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r5"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r6"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/libxml2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.11-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-3517.json"}},{"package":{"name":"libxml2","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine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