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For example, this path re-init the\nsdata->assigned_chanctx_list while it is still an element of\nassigned_vifs list, and makes that linked list corrupt."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cfg80211: llame a cfg80211_stop_ap cuando cambie del tipo P2P_GO. Si las herramientas del espacio de usuario cambian de NL80211_IFTYPE_P2P_GO a NL80211_IFTYPE_ADHOC mediante send_msg(NL80211_CMD_SET_INTERFACE), no llama a la limpieza cfg80211_ stop_ap(), esto lleva a la inicializaci\u00f3n de datos en uso. Por ejemplo, esta ruta reinicia sdata->assigned_chanctx_list mientras todav\u00eda es un elemento de la lista asignada_vifs y corrompe esa lista vinculada."}], "id": "CVE-2021-47194", "lastModified": "2024-11-21T06:35:36.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-04-10T19:15:47.807", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0738cdb636c21ab552eaecf905efa4a6070e3ebc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e458abbb4a523f1413bfe15c079cf4e24c15b21"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52affc201fc22a1ab9a59ef0ed641a9adfcb8d13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/563fbefed46ae4c1f70cffb8eb54c02df480b2c2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5a9b671c8d74a3e1b999e7a0c7f366079bcc93dd"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b97b5776daa0b39dbdadfea176f9cc0646d4a66"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f06bb8c216bcd172394f61e557727e691b4cb24"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b8a045e2a9b234cfbc06cf36923886164358ddec"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-665"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: cfg80211: call cfg80211_stop_ap when switch from P2P_GO type", "id": "2274615", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2274615"}, "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-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncfg80211: call cfg80211_stop_ap when switch from P2P_GO type\nIf the userspace tools switch from NL80211_IFTYPE_P2P_GO to\nNL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it\ndoes not call the cleanup cfg80211_stop_ap(), this leads to the\ninitialization of in-use data. For example, this path re-init the\nsdata->assigned_chanctx_list while it is still an element of\nassigned_vifs list, and makes that linked list corrupt.", "A flaw was found in the Linux Kernel, where in-use data initialization in net/wireless/util.c can lead to corrupted data."], "name": "CVE-2021-47194", "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": "2024-04-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47194\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47194\nhttps://lore.kernel.org/linux-cve-announce/2024041035-CVE-2021-47194-51cd@gregkh/T"], "statement": "Red Hat Enterprise Linux 9 is not affected by this vulnerability.", "threat_severity": "Moderate", "upstream_fix": "kernel 4.4.293, kernel 4.9.291, kernel 4.14.256, kernel 4.19.218, kernel 5.4.162, kernel 5.10.82, kernel 5.15.5, kernel 5.16"}