CVE-2024-46676

{"id": "CVE-2024-46676", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-09-13T06:15:12.223", "references": [{"url": "https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c5e05237444f32f6cfe5d907603a232c77a08b31", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-369"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Add poll mod list filling check\n\nIn case of im_protocols value is 1 and tm_protocols value is 0 this\ncombination successfully passes the check\n'if (!im_protocols && !tm_protocols)' in the nfc_start_poll().\nBut then after pn533_poll_create_mod_list() call in pn533_start_poll()\npoll mod list will remain empty and dev->poll_mod_count will remain 0\nwhich lead to division by zero.\n\nNormally no im protocol has value 1 in the mask, so this combination is\nnot expected by driver. But these protocol values actually come from\nuserspace via Netlink interface (NFC_CMD_START_POLL operation). So a\nbroken or malicious program may pass a message containing a \"bad\"\ncombination of protocol parameter values so that dev->poll_mod_count\nis not incremented inside pn533_poll_create_mod_list(), thus leading\nto division by zero.\nCall trace looks like:\nnfc_genl_start_poll()\n nfc_start_poll()\n ->start_poll()\n pn533_start_poll()\n\nAdd poll mod list filling check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfc: pn533: A\u00f1adir comprobaci\u00f3n de llenado de lista de mod de sondeo En caso de que el valor de im_protocols sea 1 y el valor de tm_protocols sea 0, esta combinaci\u00f3n pasa con \u00e9xito la comprobaci\u00f3n 'if (!im_protocols && !tm_protocols)' en nfc_start_poll(). Pero luego, despu\u00e9s de la llamada a pn533_poll_create_mod_list() en pn533_start_poll(), la lista de mod de sondeo permanecer\u00e1 vac\u00eda y dev->poll_mod_count permanecer\u00e1 en 0, lo que conduce a la divisi\u00f3n por cero. Normalmente, ning\u00fan protocolo im tiene el valor 1 en la m\u00e1scara, por lo que el controlador no espera esta combinaci\u00f3n. Pero estos valores de protocolo en realidad provienen del espacio de usuario a trav\u00e9s de la interfaz Netlink (operaci\u00f3n NFC_CMD_START_POLL). Por lo tanto, un programa da\u00f1ado o malicioso puede enviar un mensaje que contenga una combinaci\u00f3n \"mala\" de valores de par\u00e1metros de protocolo, de modo que dev->poll_mod_count no se incremente dentro de pn533_poll_create_mod_list(), lo que lleva a una divisi\u00f3n por cero. El seguimiento de la llamada se ve as\u00ed: nfc_genl_start_poll() nfc_start_poll() ->start_poll() pn533_start_poll() Agregar comprobaci\u00f3n de llenado de la lista de mods de sondeo. Encontrado por Linux Verification Center (linuxtesting.org) con SVACE."}], "lastModified": "2024-09-23T14:42:38.230", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6DD21E1B-A69A-4195-9EEE-2ED314F46F6C", "versionEndExcluding": "5.4.283", "versionStartIncluding": "3.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C57B46A9-B105-4792-8481-1870DEFB436A", "versionEndExcluding": "5.10.225", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "913ED6CD-8ACF-48AF-AA18-7880881DD402", "versionEndExcluding": "5.15.166", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B5BE381-F079-43D9-AEF2-931856B13219", "versionEndExcluding": "6.1.108", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1191B7F1-F275-45F5-9E82-A012FF517BFA", "versionEndExcluding": "6.6.49", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B5D46C3-56A4-4380-9309-27BF73DF29A7", "versionEndExcluding": "6.10.8", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B8383ABF-1457-401F-9B61-EE50F4C61F4F"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}