CVE-2022-48977

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to be CAN\ndevices but do not initialize ml_priv accordingly."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: af_can: fix NULL pointer dereference in can_rcv_filter De manera an\u00e1loga a el commit 8aa59e355949 (\"can: af_can: fix NULL pointer dereference in can_rx_register()\"), debemos comprobar si falta una inicializaci\u00f3n de ml_priv en la ruta de recepci\u00f3n de los marcos CAN. Desde el commit 4e096a18867a (\"net: introduzca el puntero espec\u00edfico de CAN en la estructura net_device\"), la verificaci\u00f3n de que dev->type sea ARPHRD_CAN ya no es suficiente ya que los dispositivos de red vinculados o sintonizados afirman ser dispositivos CAN pero no inicializan ml_priv en consecuencia."}], "id": "CVE-2022-48977", "lastModified": "2026-06-17T05:16:45.640", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48977", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:18:20.904853Z", "version": "2.0.3"}}]}, "published": "2024-10-21T20:15:09.763", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: can: af_can: fix NULL pointer dereference in can_rcv_filter", "id": "2320678", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320678"}, "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": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncan: af_can: fix NULL pointer dereference in can_rcv_filter\nAnalogue to commit 8aa59e355949 (\"can: af_can: fix NULL pointer\ndereference in can_rx_register()\") we need to check for a missing\ninitialization of ml_priv in the receive path of CAN frames.\nSince commit 4e096a18867a (\"net: introduce CAN specific pointer in the\nstruct net_device\") the check for dev->type to be ARPHRD_CAN is not\nsufficient anymore since bonding or tun netdevices claim to be CAN\ndevices but do not initialize ml_priv accordingly."], "name": "CVE-2022-48977", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"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"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48977\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48977\nhttps://lore.kernel.org/linux-cve-announce/2024102145-CVE-2022-48977-0990@gregkh/T"], "threat_severity": "Moderate"}

{}