--- 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' --- ## Overview 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. ## 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` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.