{ "document": { "aggregate_severity": { "text": "Low" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/oraclelinux6els/vex/2020/cve-2020-11810-els_os-oraclelinux6els.json" } ], "title": "Security update on CVE-2020-11810", "tracking": { "current_release_date": "2025-12-23T22:15:38Z", "generator": { "date": "2025-12-23T22:15:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2020-11810-ELS_OS-ORACLELINUX6ELS", "initial_release_date": "2020-04-27T15:15:00Z", "revision_history": [ { "date": "2020-04-27T15:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-11-29T11:06:13Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T22:15:38Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Oracle Linux 6", "product": { "name": "Oracle Linux 6", "product_id": "Oracle-Linux-6", "product_identification_helper": { "cpe": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Oracle Linux" }, { "branches": [ { "category": "product_version", "name": "openvpn-2.4.9-1.el6.x86_64", "product": { "name": "openvpn-2.4.9-1.el6.x86_64", "product_id": "openvpn-2.4.9-1.el6.x86_64", "product_identification_helper": { "purl": "pkg:rpm/oracle/openvpn@2.4.9-1.el6?arch=x86_64" } } }, { "category": "product_version", "name": "openvpn-devel-2.4.9-1.el6.x86_64", "product": { "name": "openvpn-devel-2.4.9-1.el6.x86_64", "product_id": "openvpn-devel-2.4.9-1.el6.x86_64", "product_identification_helper": { "purl": "pkg:rpm/oracle/openvpn-devel@2.4.9-1.el6?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Oracle Corporation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product": { "name": "openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product_id": "openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/openvpn@2.4.9-1.el6.tuxcare.els2?arch=x86_64" } } }, { "category": "product_version", "name": "openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "product": { "name": "openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "product_id": "openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/openvpn@2.4.9-1.el6.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product": { "name": "openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product_id": "openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/openvpn-devel@2.4.9-1.el6.tuxcare.els2?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64" }, "product_reference": "openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "openvpn-2.4.9-1.el6.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:openvpn-2.4.9-1.el6.x86_64" }, "product_reference": "openvpn-2.4.9-1.el6.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64" }, "product_reference": "openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64" }, "product_reference": "openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "openvpn-devel-2.4.9-1.el6.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:openvpn-devel-2.4.9-1.el6.x86_64" }, "product_reference": "openvpn-devel-2.4.9-1.el6.x86_64", "relates_to_product_reference": "Oracle-Linux-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2020-11810", "cwe": { "id": "CWE-362", "name": "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')" }, "notes": [ { "category": "description", "text": "An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "known_affected": [ "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-2.4.9-1.el6.x86_64", "Oracle-Linux-6:openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-devel-2.4.9-1.el6.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2020-11810" }, { "category": "external", "summary": "https://bugzilla.suse.com/show_bug.cgi?id=1169925", "url": "https://bugzilla.suse.com/show_bug.cgi?id=1169925" }, { "category": "external", "summary": "https://community.openvpn.net/openvpn/ticket/1272", "url": "https://community.openvpn.net/openvpn/ticket/1272" }, { "category": "external", "summary": "https://github.com/OpenVPN/openvpn/commit/37bc691e7d26ea4eb61a8a434ebd7a9ae76225ab", "url": "https://github.com/OpenVPN/openvpn/commit/37bc691e7d26ea4eb61a8a434ebd7a9ae76225ab" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html", "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FGHHV4YZANZW45KZTJJGVGPFMSXYRCKZ/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FGHHV4YZANZW45KZTJJGVGPFMSXYRCKZ/" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JII7RYYYRBPQNEGGVSOXCM7JUZ43T3VH/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JII7RYYYRBPQNEGGVSOXCM7JUZ43T3VH/" }, { "category": "external", "summary": "https://patchwork.openvpn.net/patch/1079/", "url": "https://patchwork.openvpn.net/patch/1079/" }, { "category": "external", "summary": "https://security-tracker.debian.org/tracker/CVE-2020-11810", "url": "https://security-tracker.debian.org/tracker/CVE-2020-11810" } ], "release_date": "2020-04-27T15:15:00Z", "remediations": [ { "category": "no_fix_planned", "details": "Ignored due to low severity", "product_ids": [ "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-2.4.9-1.el6.x86_64", "Oracle-Linux-6:openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-devel-2.4.9-1.el6.x86_64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0" }, "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "products": [ "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:openvpn-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-2.4.9-1.el6.x86_64", "Oracle-Linux-6:openvpn-devel-0:2.4.9-1.el6.tuxcare.els2.x86_64", "Oracle-Linux-6:openvpn-devel-2.4.9-1.el6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Low" } ] } ] }