{ "document": { "aggregate_severity": { "text": "Medium" }, "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/debian10els/vex/2024/cve-2024-27405-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:54:37Z", "generator": { "date": "2026-08-25T12:54:37Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2024-27405-ELS_OS-DEBIAN10ELS", "initial_release_date": "2024-05-17T12:15:00Z", "revision_history": [ { "date": "2024-05-17T12:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:54:37Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on 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"hyperv-daemons-0:4.19.325-1.amd64 as a component of Debian 10", "product_id": "Debian-10:hyperv-daemons-0:4.19.325-1.amd64" }, "product_reference": "hyperv-daemons-0:4.19.325-1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1.amd64" }, "product_reference": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2024-27405", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs\n\nIt is observed sometimes when tethering is used over NCM with Windows 11\nas host, at some instances, the gadget_giveback has one byte appended at\nthe end of a proper NTB. When the NTB is parsed, unwrap call looks for\nany leftover bytes in SKB provided by u_ether and if there are any pending\nbytes, it treats them as a separate NTB and parses it. But in case the\nsecond NTB (as per unwrap call) is faulty/corrupt, all the datagrams that\nwere parsed properly in the first NTB and saved in rx_list are dropped.\n\nAdding a few custom traces showed the following:\n[002] d..1 7828.532866: dwc3_gadget_giveback: ep1out:\nreq 000000003868811a length 1025/16384 zsI ==> 0\n[002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb toprocess: 1025\n[002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342\n[002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb seq: 0xce67\n[002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x400\n[002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb ndp_len: 0x10\n[002] d..1 7828.532869: ncm_unwrap_ntb: K: Parsed NTB with 1 frames\n\nIn this case, the giveback is of 1025 bytes and block length is 1024.\nThe rest 1 byte (which is 0x00) won't be parsed resulting in drop of\nall datagrams in rx_list.\n\nSame is case with packets of size 2048:\n[002] d..1 7828.557948: dwc3_gadget_giveback: ep1out:\nreq 0000000011dfd96e length 2049/16384 zsI ==> 0\n[002] d..1 7828.557949: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342\n[002] d..1 7828.557950: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x800\n\nLecroy shows one byte coming in extra confirming that the byte is coming\nin from PC:\n\n Transfer 2959 - Bytes Transferred(1025) Timestamp((18.524 843 590)\n - Transaction 8391 - Data(1025 bytes) Timestamp(18.524 843 590)\n --- Packet 4063861\n Data(1024 bytes)\n Duration(2.117us) Idle(14.700ns) Timestamp(18.524 843 590)\n --- Packet 4063863\n Data(1 byte)\n Duration(66.160ns) Time(282.000ns) Timestamp(18.524 845 722)\n\nAccording to Windows driver, no ZLP is needed if wBlockLength is non-zero,\nbecause the non-zero wBlockLength has already told the function side the\nsize of transfer to be expected. However, there are in-market NCM devices\nthat rely on ZLP as long as the wBlockLength is multiple of wMaxPacketSize.\nTo deal with such devices, it pads an extra 0 at end so the transfer is no\nlonger multiple of wMaxPacketSize.", "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": [ "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64", 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"Debian-10:linux-support-4.19.0-28-0:4.19.325-1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2024-27405" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/059285e04ebb273d32323fbad5431c5b94f77e48", "url": "https://git.kernel.org/stable/c/059285e04ebb273d32323fbad5431c5b94f77e48" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/2b7ec68869d50ea998908af43b643bca7e54577e", "url": "https://git.kernel.org/stable/c/2b7ec68869d50ea998908af43b643bca7e54577e" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/2cb66b62a5d64ccf09b0591ab86fb085fa491fc5", "url": "https://git.kernel.org/stable/c/2cb66b62a5d64ccf09b0591ab86fb085fa491fc5" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/35b604a37ec70d68b19dafd10bbacf1db505c9ca", "url": "https://git.kernel.org/stable/c/35b604a37ec70d68b19dafd10bbacf1db505c9ca" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/57ca0e16f393bb21d69734e536e383a3a4c665fd", "url": "https://git.kernel.org/stable/c/57ca0e16f393bb21d69734e536e383a3a4c665fd" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/76c51146820c5dac629f21deafab0a7039bc3ccd", "url": "https://git.kernel.org/stable/c/76c51146820c5dac629f21deafab0a7039bc3ccd" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/a31cf46d108dabce3df80b3e5c07661e24912151", "url": "https://git.kernel.org/stable/c/a31cf46d108dabce3df80b3e5c07661e24912151" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c7f43900bc723203d7554d299a2ce844054fab8e", "url": "https://git.kernel.org/stable/c/c7f43900bc723203d7554d299a2ce844054fab8e" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html" } ], "release_date": "2024-05-17T12:15:00Z", "remediations": [ { "category": "none_available", "date": "2026-08-02T13:12:22.248738Z", "details": "Affected", "product_ids": [ "Debian-10:hyperv-daemons-0:4.19.325-1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1.amd64", "Debian-10:libcpupower1-0:4.19.325-1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1.amd64", "Debian-10:linux-cpupower-0:4.19.325-1.amd64", "Debian-10:linux-doc-4.19-0:4.19.325-1.all", "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1.amd64", "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1.amd64", "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1.amd64", "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1.all", "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1.amd64", "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1.amd64", "Debian-10:linux-kbuild-4.19-0:4.19.325-1.amd64", "Debian-10:linux-libc-dev-0:4.19.325-1.amd64", "Debian-10:linux-perf-4.19-0:4.19.325-1.amd64", "Debian-10:linux-source-4.19-0:4.19.325-1.all", "Debian-10:linux-support-4.19.0-28-0:4.19.325-1.all" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "Debian-10:hyperv-daemons-0:4.19.325-1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1.amd64", 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