CVE-2024-26683

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This was in commit c09c4f31998b\n(\"wifi: mac80211: don't connect to an AP while it's in\na CSA process\").\n\nHowever, we promptly got a report that this caused new\nconnection failures, and it turns out that the AP that\nwe now cannot connect to is permanently advertising an\nextended channel switch announcement, even with quiet.\nThe AP in question was an Asus RT-AC53, with firmware\n3.0.0.4.380_10760-g21a5898.\n\nAs a first step, attempt to detect that we're dealing\nwith such a situation, so mac80211 can use this later."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: \"wifi: cfg80211: detect stuck ECSA element in probe resp\". Recientemente agregamos alguna validaci\u00f3n de que no intentamos conectarnos a un AP que se encuentra actualmente en un proceso de cambio de canal, desde entonces es posible que deseemos que el canal est\u00e9 en silencio o que no podamos conectarnos a tiempo para escuchar el cambio en una baliza. Esto estaba en el commit c09c4f31998b (\"wifi: mac80211: no se conecte a un AP mientras est\u00e9 en un proceso CSA\"). Sin embargo, r\u00e1pidamente recibimos un informe de que esto caus\u00f3 nuevas fallas de conexi\u00f3n, y resulta que el AP al que ahora no podemos conectarnos anuncia permanentemente un anuncio de cambio de canal extendido, incluso en silencio. El AP en cuesti\u00f3n era un Asus RT-AC53, con firmware 3.0.0.4.380_10760-g21a5898. Como primer paso, intente detectar que estamos lidiando con una situaci\u00f3n de este tipo, para que mac80211 pueda usarlo m\u00e1s adelante."}], "id": "CVE-2024-26683", "lastModified": "2026-06-17T07:18:05.253", "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-2024-26683", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-04-03T15:15:07.235616Z", "version": "2.0.3"}}]}, "published": "2024-04-02T07:15:44.700", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177fbbcb4ed6b306c1626a277fac3fb1c495a4c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ce112c941c2b172afba3e913a90c380647d53975"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/177fbbcb4ed6b306c1626a277fac3fb1c495a4c7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ce112c941c2b172afba3e913a90c380647d53975"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: cfg80211: detect stuck ECSA element in probe resp", "id": "2272822", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2272822"}, "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:\nwifi: cfg80211: detect stuck ECSA element in probe resp\nWe recently added some validation that we don't try to\nconnect to an AP that is currently in a channel switch\nprocess, since that might want the channel to be quiet\nor we might not be able to connect in time to hear the\nswitching in a beacon. This was in commit c09c4f31998b\n(\"wifi: mac80211: don't connect to an AP while it's in\na CSA process\").\nHowever, we promptly got a report that this caused new\nconnection failures, and it turns out that the AP that\nwe now cannot connect to is permanently advertising an\nextended channel switch announcement, even with quiet.\nThe AP in question was an Asus RT-AC53, with firmware\n3.0.0.4.380_10760-g21a5898.\nAs a first step, attempt to detect that we're dealing\nwith such a situation, so mac80211 can use this later.", "A vulnerability was found in the Linux kernel. This issue occurs when an AP continually advertises a stuck ECSA element, leading to incorrect channel switch process handling. This can lead to network connectivity issues if the AP is stuck in a state where it continuously advertises a false channel switch."], "name": "CVE-2024-26683", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26683\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26683\nhttps://lore.kernel.org/linux-cve-announce/2024040254-CVE-2024-26683-8614@gregkh/T"], "threat_severity": "Moderate"}

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