{"id":"CVE-2020-24977","title":"GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c","summary":"GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"vendor":"xmlsoft","product":"libxml2","affected":["libxml2 = 2.9.10","debian_linux = 9.0","fedora = 31","fedora = 32","fedora = 33","leap = 15.1","leap = 15.2","active_iq_unified_manager >= 7.3","active_iq_unified_manager >= 9.5","clustered_data_ontap","clustered_data_ontap_antivirus_connector","inventory_collect_tool","manageability_software_development_kit","snapdrive","hci_h410c_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","http_server = 12.2.1.3.0","http_server = 12.2.1.4.0","mysql_workbench <= 8.0.26","peoplesoft_enterprise_peopletools = 8.58","real_user_experience_insight = 13.4.1.0","real_user_experience_insight = 13.5.1.0"],"published":"2020-09-04","updated":"2026-10-14","sourceUpdated":"2026-10-14T10:17:32.697","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-24977","references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00036.html","label":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00061.html","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2","label":"cve@mitre.org"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/178","label":"cve@mitre.org"},{"url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","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/2NQ5GTDYOVH26PBCPYXXMGW5ZZXWMGZC/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KTUAGDLEHTH6HU66HBFAFTSQ3OKRAN3/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/674LQPJO2P2XTBTREFR5LOZMBTZ4PZAY/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KQXOHIE3MNY3VQXEN7LDQUJNIHOVHAW/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENEHQIBMSI6TZVS35Y6I4FCTYUQDLJVP/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3IQ7OQXBKWD3YP7HO6KCNOMLE5ZO2IR/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3ICASXZI2UQYFJAOQWHSTNWGED3VXOE/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCHXIWR5DHYO3RSO7RAHEC6VJKXD2EH2/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7MEWYKIKMV2SKMGH4IDWVU3ZGJXBCPQ/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RIQAMBA2IJUTQG5VOP5LZVIZRNCKXHEQ/","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202107-05","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"cve@mitre.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.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/2020-09/msg00036.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00061.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/178","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","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/2NQ5GTDYOVH26PBCPYXXMGW5ZZXWMGZC/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5KTUAGDLEHTH6HU66HBFAFTSQ3OKRAN3/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/674LQPJO2P2XTBTREFR5LOZMBTZ4PZAY/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KQXOHIE3MNY3VQXEN7LDQUJNIHOVHAW/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENEHQIBMSI6TZVS35Y6I4FCTYUQDLJVP/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H3IQ7OQXBKWD3YP7HO6KCNOMLE5ZO2IR/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3ICASXZI2UQYFJAOQWHSTNWGED3VXOE/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCHXIWR5DHYO3RSO7RAHEC6VJKXD2EH2/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7MEWYKIKMV2SKMGH4IDWVU3ZGJXBCPQ/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RIQAMBA2IJUTQG5VOP5LZVIZRNCKXHEQ/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202107-05","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20200924-0001/","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/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":0.02976,"epssPercentile":0.86934,"ingestedAt":"2026-10-14T10:25:41.179Z","slug":"CVE-2020-24977","body":"## Overview\n\nGNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.\n\n## Affected\n\n- `libxml2 = 2.9.10`\n- `debian_linux = 9.0`\n- `fedora = 31`\n- `fedora = 32`\n- `fedora = 33`\n- `leap = 15.1`\n- `leap = 15.2`\n- `active_iq_unified_manager >= 7.3`\n- `active_iq_unified_manager >= 9.5`\n- `clustered_data_ontap`\n- `clustered_data_ontap_antivirus_connector`\n- `inventory_collect_tool`\n- `manageability_software_development_kit`\n- `snapdrive`\n- `hci_h410c_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- `http_server = 12.2.1.3.0`\n- `http_server = 12.2.1.4.0`\n- `mysql_workbench <= 8.0.26`\n- `peoplesoft_enterprise_peopletools = 8.58`\n- `real_user_experience_insight = 13.4.1.0`\n- `real_user_experience_insight = 13.5.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}