CVE-2023-1390

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The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition."}], "id": "CVE-2023-1390", "lastModified": "2026-06-17T05:27:50.857", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-1390", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T13:26:35.899836Z", "version": "2.0.3"}}]}, "published": "2023-03-16T21:15:11.447", "references": [{"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6"}, {"source": "secalert@redhat.com", "url": "https://infosec.exchange/%40_mattata/109427999461122360"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20230420-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://infosec.exchange/%40_mattata/109427999461122360"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20230420-0001/"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1050"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Remy (GreyNoiseIO) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:1739", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-305.rt7.72.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1578", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-305.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2023:3190", "cpe": "cpe:/o:redhat:rhel_e4s:8.1", "package": "kernel-0:4.18.0-147.83.1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2023-05-17T00:00:00Z"}, {"advisory": "RHSA-2023:3191", "cpe": "cpe:/o:redhat:rhel_e4s:8.1", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2023-05-17T00:00:00Z"}, {"advisory": "RHSA-2023:4125", "cpe": "cpe:/o:redhat:rhel_aus:8.2", "package": "kernel-0:4.18.0-193.109.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4126", "cpe": "cpe:/a:redhat:rhel_tus:8.2::nfv", "package": "kernel-rt-0:4.18.0-193.109.1.rt13.160.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4125", "cpe": "cpe:/o:redhat:rhel_tus:8.2", "package": "kernel-0:4.18.0-193.109.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4125", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "kernel-0:4.18.0-193.109.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4146", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-07-18T00:00:00Z"}], "bugzilla": {"description": "kernel: remote DoS in TIPC kernel module", "id": "2178212", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2178212"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-1050", "details": ["A remote denial of service vulnerability was found in the Linux kernel\u2019s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.", "A remote denial of service vulnerability was found in the Linux kernel\u2019s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition."], "name": "CVE-2023-1390", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhev_hypervisor:4", "fix_state": "Not affected", "package_name": "redhat-virtualization-host", "product_name": "Red Hat Virtualization 4"}], "public_date": "2021-01-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-1390\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-1390\nhttps://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5\nhttps://infosec.exchange/@_mattata/109427999461122360"], "statement": "Red Hat Enterprise Linux 6 and 7 are not affected by this issue as they did not include the affected code in `tipc_link_xmit`, introduced in upstream kernel version 4.3 (commit af9b028 \"tipc: make media xmit call outside node spinlock context\").", "threat_severity": "Important"}

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