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{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: pcie: handle randbuf allocation failure\n\nThe kzalloc() in brcmf_pcie_download_fw_nvram() will return null\nif the physical memory has run out. As a result, if we use\nget_random_bytes() to generate random bytes in the randbuf, the\nnull pointer dereference bug will happen.\n\nIn order to prevent allocation failure, this patch adds a separate\nfunction using buffer on kernel stack to generate random bytes in\nthe randbuf, which could prevent the kernel stack from overflow."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: brcmfmac: pcie: manejar fallo de asignaci\u00f3n de randbuf El kzalloc() en brcmf_pcie_download_fw_nvram() devolver\u00e1 nulo si la memoria f\u00edsica se ha agotado. Como resultado, si usamos get_random_bytes() para generar bytes aleatorios en randbuf, se producir\u00e1 el error de desreferencia del puntero nulo. Para evitar fallas en la asignaci\u00f3n, este parche agrega una funci\u00f3n separada que utiliza el b\u00fafer en la pila del kernel para generar bytes aleatorios en randbuf, lo que podr\u00eda evitar que la pila del kernel se desborde."}], "id": "CVE-2024-38575", "lastModified": "2024-11-21T09:26:23.207", "metrics": {}, "published": "2024-06-19T14:15:17.603", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/316f790ebcf94bdf59f794b7cdea4068dc676d4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3729ca9e48d19a03ae049e2bde510e161c2f3720"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c15eb344b0d4d3468c9b2a7591ad2b859b29b88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c37466406f075476c2702ecc01917928af871f3b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/0eb2c0528e232b3c32cde9d5e1c9f80ba2996e49"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/316f790ebcf94bdf59f794b7cdea4068dc676d4c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/3729ca9e48d19a03ae049e2bde510e161c2f3720"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/7c15eb344b0d4d3468c9b2a7591ad2b859b29b88"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/c37466406f075476c2702ecc01917928af871f3b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:5102", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5101", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.16.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5363", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.31.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-15T00:00:00Z"}, {"advisory": "RHSA-2024:5363", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.31.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-15T00:00:00Z"}], "bugzilla": {"description": "kernel: wifi: brcmfmac: pcie: handle randbuf allocation failure", "id": "2293418", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293418"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400->CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: brcmfmac: pcie: handle randbuf allocation failure\nThe kzalloc() in brcmf_pcie_download_fw_nvram() will return null\nif the physical memory has run out. As a result, if we use\nget_random_bytes() to generate random bytes in the randbuf, the\nnull pointer dereference bug will happen.\nIn order to prevent allocation failure, this patch adds a separate\nfunction using buffer on kernel stack to generate random bytes in\nthe randbuf, which could prevent the kernel stack from overflow."], "name": "CVE-2024-38575", "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": "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:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-38575\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-38575\nhttps://lore.kernel.org/linux-cve-announce/2024061946-CVE-2024-38575-8b6b@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 6.1.93, kernel 6.6.33, kernel 6.8.12, kernel 6.9.3, kernel 6.10-rc1"}