{"id":"CVE-2022-43680","details":"In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.","aliases":["A-255449293","ASB-A-255449293"],"modified":"2026-05-18T05:54:02.668987537Z","published":"2022-10-24T00:00:00Z","related":["ALSA-2023:0103","ALSA-2023:0337","CGA-crgv-4qmc-wc5r","SUSE-SU-2022:3874-1","SUSE-SU-2022:3884-1","SUSE-SU-2022:3912-1","openSUSE-SU-2024:12449-1"],"database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/43xxx/CVE-2022-43680.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/43xxx/CVE-2022-43680.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-43680"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202210-38"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20221118-0007/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5266"},{"type":"REPORT","url":"https://github.com/libexpat/libexpat/issues/649"},{"type":"FIX","url":"https://github.com/libexpat/libexpat/pull/616"},{"type":"FIX","url":"https://github.com/libexpat/libexpat/pull/650"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2023/12/28/5"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2024/01/03/5"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00033.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libexpat/libexpat","events":[{"introduced":"0"},{"fixed":"d77291a4824d78e697c5dc2b8024fd65ab31e209"}]}],"versions":["R_2_4_8","R_2_4_7","R_2_4_6","R_2_4_5","R_2_4_4","R_2_4_3","R_2_4_2","R_2_4_1","R_2_4_0","R_2_3_0","R_2_2_10","R_2_2_9","R_2_2_8","R_2_2_7","R_2_2_6","R_2_2_5","R_2_2_4","R_2_2_3","R_2_2_2","R_2_2_1","R_2_2_0","R_2_1_1","R_2_1_0","R_2_0_1","R_2_0_0","R_1_95_8","R_1_95_7","R_1_95_6","R_1_95_5","R_1_95_4","R_1_95_3","R_1_95_2","R_1_95_0","libexpat-alpha-1","start","sourceforge_init","jclark-orig","V20000512","V19991013","V19990728","V19990709","V19990626","V1_1","V19990425","V1990307","V19990109","V19981231","V19981122","V1_0","beta4","beta3","beta2","REC1_0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-43680.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}