{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47385", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T14:58:30.813Z", "datePublished": "2024-05-21T15:03:45.615Z", "dateUpdated": "2024-11-04T12:04:52.757Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:04:52.757Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read val value sufficient for\n(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hwmon/w83792d.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "200ced5ba724", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "1499bb2c3a87", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "24af1fe376e2", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "0f36b88173f0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hwmon/w83792d.c"], "versions": [{"version": "5.4.151", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.71", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.14.10", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"}, {"url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"}, {"url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"}, {"url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"}], "title": "hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47385", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-21T18:21:21.066599Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:54.726Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.690Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278", "tags": ["x_transferred"]}]}]}}

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{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field\n\nIf driver read val value sufficient for\n(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\n\nThe patch fixes possible NULL pointer dereference by removing lm75[].\n\nFound by Linux Driver Verification project (linuxtesting.org).\n\n[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: hwmon: (w83792d) Corrija la desreferencia del puntero NULL eliminando el campo de estructura innecesario. Si el controlador lee el valor val suficiente para (val & 0x08) && (!(val & 0x80)) && (( val & 0x7) == ((val >> 4) & 0x7)) desde el dispositivo, luego se produce la desreferencia del puntero null. (Es posible si tmp = 0b0xyz1xyz, donde los mismos literales significan los mismos n\u00fameros) Adem\u00e1s, lm75[] ya no sirve para nada despu\u00e9s de cambiar a devm_i2c_new_dummy_device() en w83791d_detect_subclients(). El parche corrige la posible desreferencia del puntero NULL eliminando lm75[]. Encontrado por el proyecto de verificaci\u00f3n de controladores de Linux (linuxtesting.org). [groeck: Se eliminaron l\u00edneas de continuaci\u00f3n innecesarias, se corrigi\u00f3 la alineaci\u00f3n multil\u00ednea]"}], "id": "CVE-2021-47385", "lastModified": "2024-11-21T06:36:02.157", "metrics": {}, "published": "2024-05-21T15:15:24.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/0f36b88173f028e372668ae040ab1a496834d278"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/1499bb2c3a87a2efea0065adab2bd66badee61c3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/200ced5ba724d8bbf29dfac4ed1e17a39ccaccd1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/24af1fe376e22c42238a4a604d31e46c486876c3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"affected_release": [{"advisory": "RHSA-2024:7001", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:7000", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.22.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:5281", "cpe": "cpe:/o:redhat:rhel_aus:8.6", "package": "kernel-0:4.18.0-372.118.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2024-08-13T00:00:00Z"}, {"advisory": "RHSA-2024:5281", "cpe": "cpe:/o:redhat:rhel_tus:8.6", "package": "kernel-0:4.18.0-372.118.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2024-08-13T00:00:00Z"}, {"advisory": "RHSA-2024:5281", "cpe": "cpe:/o:redhat:rhel_e4s:8.6", "package": "kernel-0:4.18.0-372.118.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2024-08-13T00:00:00Z"}, {"advisory": "RHSA-2024:6206", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "kernel-0:4.18.0-477.70.1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-09-03T00:00:00Z"}, {"advisory": "RHSA-2024:8162", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.40.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:8162", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.40.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:8157", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.88.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:8158", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.88.1.rt14.373.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}], "bugzilla": {"description": "kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field", "id": "2282355", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282355"}, "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-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nhwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field\nIf driver read val value sufficient for\n(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))\nfrom device then Null pointer dereference occurs.\n(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)\nAlso lm75[] does not serve a purpose anymore after switching to\ndevm_i2c_new_dummy_device() in w83791d_detect_subclients().\nThe patch fixes possible NULL pointer dereference by removing lm75[].\nFound by Linux Driver Verification project (linuxtesting.org).\n[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]"], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}, "name": "CVE-2021-47385", "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:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47385\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47385\nhttps://lore.kernel.org/linux-cve-announce/2024052144-CVE-2021-47385-a7e7@gregkh/T"], "statement": "This vulnerability is rated as a moderate severity because it can cause crashes and operational disruptions, it does not expose sensitive information or allow unauthorized access.", "threat_severity": "Moderate", "upstream_fix": "kernel 5.4.151, kernel 5.10.71, kernel 5.14.10, kernel 5.15"}