{"id":"CVE-2019-20388","title":"xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.","summary":"xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401","CWE-401"],"vendor":"xmlsoft","product":"libxml2","affected":["libxml2 = 2.9.10","debian_linux = 9.0","cloud_backup","clustered_data_ontap","ontap_select_deploy_administration_utility","plug-in_for_symantec_netbackup","smi-s_provider","snapdrive","steelstore_cloud_integrated_storage","h300s_firmware","h500s_firmware","h700s_firmware","h300e_firmware","h500e_firmware","h700e_firmware","h410s_firmware","communications_cloud_native_core_network_function_cloud_native_environment = 1.10.0","enterprise_manager_base_platform = 13.4.0.0","enterprise_manager_base_platform = 13.5.0.0","enterprise_manager_ops_center = 12.4.0.0","mysql_workbench <= 8.0.26","peoplesoft_enterprise_peopletools = 8.58","real_user_experience_insight = 13.3.1.0","real_user_experience_insight = 13.4.1.0","real_user_experience_insight = 13.5.1.0","leap = 15.1","fedora = 30","fedora = 31","fedora = 32"],"published":"2020-01-21","updated":"2026-10-14","sourceUpdated":"2026-10-14T08:17:01.130","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-20388","references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/merge_requests/68","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/545SPOI3ZPPNPX4TFRIVE4JVRTJRKULL/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202010-04","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200702-0005/","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","label":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/merge_requests/68","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/545SPOI3ZPPNPX4TFRIVE4JVRTJRKULL/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202010-04","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200702-0005/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd"],"epss":0.03145,"epssPercentile":0.87607,"ingestedAt":"2026-10-14T08:23:04.330Z","slug":"CVE-2019-20388","body":"## Overview\n\nxmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.\n\n## Affected\n\n- `libxml2 = 2.9.10`\n- `debian_linux = 9.0`\n- `cloud_backup`\n- `clustered_data_ontap`\n- `ontap_select_deploy_administration_utility`\n- `plug-in_for_symantec_netbackup`\n- `smi-s_provider`\n- `snapdrive`\n- `steelstore_cloud_integrated_storage`\n- `h300s_firmware`\n- `h500s_firmware`\n- `h700s_firmware`\n- `h300e_firmware`\n- `h500e_firmware`\n- `h700e_firmware`\n- `h410s_firmware`\n- `communications_cloud_native_core_network_function_cloud_native_environment = 1.10.0`\n- `enterprise_manager_base_platform = 13.4.0.0`\n- `enterprise_manager_base_platform = 13.5.0.0`\n- `enterprise_manager_ops_center = 12.4.0.0`\n- `mysql_workbench <= 8.0.26`\n- `peoplesoft_enterprise_peopletools = 8.58`\n- `real_user_experience_insight = 13.3.1.0`\n- `real_user_experience_insight = 13.4.1.0`\n- `real_user_experience_insight = 13.5.1.0`\n- `leap = 15.1`\n- `fedora = 30`\n- `fedora = 31`\n- `fedora = 32`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}