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{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()", "id": "2281282", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281282"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()\nsubflow_finish_connect() uses four fields (backup, join_id, thmac, none)\nthat may contain garbage unless OPTION_MPTCP_MPJ_SYNACK has been set\nin mptcp_parse_option()", "CVE-2024-35840 is a vulnerability in the Linux kernel\u2019s Multipath TCP (MPTCP) implementation. It occurs because the subflow_finish_connect() function may handle uninitialized data in certain fields if a specific MPTCP option (OPTION_MPTCP_MPJ_SYNACK) is not correctly set during option parsing. This could lead to unpredictable behavior in MPTCP connections. The issue has been resolved by ensuring proper initialization and handling of these fields."], "name": "CVE-2024-35840", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35840\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35840\nhttps://lore.kernel.org/linux-cve-announce/2024051756-CVE-2024-35840-99fa@gregkh/T"], "threat_severity": "Moderate"}

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