{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_security_advisory", "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" }, { "category": "details", "text": "CVE-2024-3661: fix TunnelVision vulnerability by preventing DHCP option\n 121 route manipulation that could bypass VPN encryption and leak traffic", "title": "Details" } ], "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/almalinux9.2esu/advisories/2025/clsa-2025_1764322970.json" }, { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2025:1764322970", "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1764322970" } ], "tracking": { "current_release_date": "2025-11-28T09:43:56Z", "generator": { "date": "2025-11-28T09:43:56Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2025:1764322970", "initial_release_date": "2025-11-28T09:43:56Z", "revision_history": [ { "date": "2025-11-28T09:43:56Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "NetworkManager: Fix of CVE-2024-3661" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.2", "product": { "name": "AlmaLinux 9.2", "product_id": "AlmaLinux-9.2", "product_identification_helper": { "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "AlmaLinux" } ], "category": "vendor", "name": "AlmaLinux OS Foundation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "NetworkManager-config-server-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "product": { "name": "NetworkManager-config-server-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "product_id": 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"pkg:rpm/tuxcare/NetworkManager-libnm@1.42.2-8.el9_2.tuxcare.els1?arch=i686&epoch=1" } } }, { "category": "product_version", "name": "NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "product": { "name": "NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "product_id": "NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/NetworkManager-libnm-devel@1.42.2-8.el9_2.tuxcare.els1?arch=i686&epoch=1" } } } ], "category": "architecture", "name": "i686" }, { "branches": [ { "category": "product_version", "name": "NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product": { "name": "NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_id": "NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/NetworkManager-libnm@1.42.2-8.el9_2.tuxcare.els1?arch=x86_64&epoch=1" } } }, { "category": "product_version", 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} }, { "category": "product_version", "name": "NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product": { "name": "NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_id": "NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/NetworkManager-cloud-setup@1.42.2-8.el9_2.tuxcare.els1?arch=x86_64&epoch=1" } } }, { "category": "product_version", "name": "NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product": { "name": "NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_id": "NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/NetworkManager-ppp@1.42.2-8.el9_2.tuxcare.els1?arch=x86_64&epoch=1" } } }, { "category": "product_version", "name": "NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product": { "name": "NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "product_id": 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"product_id": "AlmaLinux-9.2:NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" }, "product_reference": "NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" }, "product_reference": "NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch" }, "product_reference": "NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" }, "product_reference": "NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" }, { "category": "default_component_of", "full_product_name": { "name": "NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" }, "product_reference": "NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2024-3661", "cwe": { "id": "CWE-306", "name": "Missing Authentication for Critical Function" }, "notes": [ { "category": "description", "text": "DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN.", "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": { "fixed": [ "AlmaLinux-9.2:NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-adsl-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-config-connectivity-redhat-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-config-server-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-initscripts-updown-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-team-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-tui-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wifi-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2024-3661" }, { "category": "external", "summary": "https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/", "url": "https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/" }, { "category": "external", "summary": "https://bst.cisco.com/quickview/bug/CSCwk05814", "url": "https://bst.cisco.com/quickview/bug/CSCwk05814" }, { "category": "external", "summary": "https://datatracker.ietf.org/doc/html/rfc2131#section-7", "url": "https://datatracker.ietf.org/doc/html/rfc2131#section-7" }, { "category": "external", "summary": "https://datatracker.ietf.org/doc/html/rfc3442#section-7", "url": "https://datatracker.ietf.org/doc/html/rfc3442#section-7" }, { "category": "external", "summary": "https://fortiguard.fortinet.com/psirt/FG-IR-24-170", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-24-170" }, { "category": "external", "summary": "https://issuetracker.google.com/issues/263721377", "url": "https://issuetracker.google.com/issues/263721377" }, { "category": "external", "summary": "https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/", "url": "https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/" }, { "category": "external", "summary": "https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic", "url": "https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic" }, { "category": "external", "summary": "https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision", "url": "https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision" }, { "category": "external", "summary": "https://my.f5.com/manage/s/article/K000139553", "url": "https://my.f5.com/manage/s/article/K000139553" }, { "category": "external", "summary": "https://news.ycombinator.com/item?id=40279632", "url": "https://news.ycombinator.com/item?id=40279632" }, { "category": "external", "summary": "https://news.ycombinator.com/item?id=40284111", "url": "https://news.ycombinator.com/item?id=40284111" }, { "category": "external", "summary": "https://security.paloaltonetworks.com/CVE-2024-3661", "url": "https://security.paloaltonetworks.com/CVE-2024-3661" }, { "category": "external", "summary": "https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661", "url": "https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661" }, { "category": "external", "summary": "https://tunnelvisionbug.com/", "url": "https://tunnelvisionbug.com/" }, { "category": "external", "summary": "https://www.agwa.name/blog/post/hardening_openvpn_for_def_con", "url": "https://www.agwa.name/blog/post/hardening_openvpn_for_def_con" }, { "category": "external", "summary": "https://www.leviathansecurity.com/research/tunnelvision", "url": "https://www.leviathansecurity.com/research/tunnelvision" }, { "category": "external", "summary": "https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/", "url": "https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/" }, { "category": "external", "summary": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009", "url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009" }, { "category": "external", "summary": "https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability", "url": "https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability" } ], "release_date": "2024-05-06T19:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2025-11-28T09:42:52.629811Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1764322970", "product_ids": [ "AlmaLinux-9.2:NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-adsl-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-config-connectivity-redhat-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-config-server-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-initscripts-updown-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-team-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-tui-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wifi-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1764322970" } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L", "version": "3.1" }, "products": [ "AlmaLinux-9.2:NetworkManager-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-adsl-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-bluetooth-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-cloud-setup-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-config-connectivity-redhat-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-config-server-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-dispatcher-routing-rules-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-initscripts-updown-1:1.42.2-8.el9_2.tuxcare.els1.noarch", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.i686", "AlmaLinux-9.2:NetworkManager-libnm-devel-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ovs-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-ppp-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-team-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-tui-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wifi-1:1.42.2-8.el9_2.tuxcare.els1.x86_64", "AlmaLinux-9.2:NetworkManager-wwan-1:1.42.2-8.el9_2.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }