{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38348", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.006Z", "datePublished": "2025-07-10T08:15:15.883Z", "dateUpdated": "2025-11-03T17:36:58.983Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-28T04:19:35.068Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()\n\nRobert Morris reported:\n\n|If a malicious USB device pretends to be an Intersil p54 wifi\n|interface and generates an eeprom_readback message with a large\n|eeprom->v1.len, p54_rx_eeprom_readback() will copy data from the\n|message beyond the end of priv->eeprom.\n|\n|static void p54_rx_eeprom_readback(struct p54_common *priv,\n| struct sk_buff *skb)\n|{\n| struct p54_hdr *hdr = (struct p54_hdr *) skb->data;\n| struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;\n|\n| if (priv->fw_var >= 0x509) {\n| memcpy(priv->eeprom, eeprom->v2.data,\n| le16_to_cpu(eeprom->v2.len));\n| } else {\n| memcpy(priv->eeprom, eeprom->v1.data,\n| le16_to_cpu(eeprom->v1.len));\n| }\n| [...]\n\nThe eeprom->v{1,2}.len is set by the driver in p54_download_eeprom().\nThe device is supposed to provide the same length back to the driver.\nBut yes, it's possible (like shown in the report) to alter the value\nto something that causes a crash/panic due to overrun.\n\nThis patch addresses the issue by adding the size to the common device\ncontext, so p54_rx_eeprom_readback no longer relies on possibly tampered\nvalues... That said, it also checks if the \"firmware\" altered the value\nand no longer copies them.\n\nThe one, small saving grace is: Before the driver tries to read the eeprom,\nit needs to upload >a< firmware. the vendor firmware has a proprietary\nlicense and as a reason, it is not present on most distributions by\ndefault."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/intersil/p54/fwio.c", "drivers/net/wireless/intersil/p54/p54.h", "drivers/net/wireless/intersil/p54/txrx.c"], "versions": [{"version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "12134f79e53eb56b0b0b7447fa0c512acf6a8422", "status": "affected", "versionType": "git"}, {"version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "9701f842031b825e2fd5f22d064166f8f13f6e4d", "status": "affected", "versionType": "git"}, {"version": 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That said, it also checks if the \"firmware\" altered the value\nand no longer copies them.\n\nThe one, small saving grace is: Before the driver tries to read the eeprom,\nit needs to upload >a< firmware. the vendor firmware has a proprietary\nlicense and as a reason, it is not present on most distributions by\ndefault."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: p54: evitar desbordamiento de b\u00fafer en p54_rx_eeprom_readback() Robert Morris inform\u00f3: |Si un dispositivo USB malicioso se hace pasar por una interfaz wifi p54 de Intersil y genera un mensaje eeprom_readback con un eeprom-&gt;v1.len largo, p54_rx_eeprom_readback() copiar\u00e1 los datos del mensaje m\u00e1s all\u00e1 del final de priv-&gt;eeprom. | |static void p54_rx_eeprom_readback(struct p54_common *priv, | struct sk_buff *skb) |{ | struct p54_hdr *hdr = (struct p54_hdr *) skb-&gt;data; | struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr-&gt;data; | | if (priv-&gt;fw_var &gt;= 0x509) { | memcpy(priv-&gt;eeprom, eeprom-&gt;v2.data, | le16_to_cpu(eeprom-&gt;v2.len)); | } else { | memcpy(priv-&gt;eeprom, eeprom-&gt;v1.data, | le16_to_cpu(eeprom-&gt;v1.len)); | } | [...] El controlador establece eeprom-&gt;v{1,2}.len en p54_download_eeprom(). Se supone que el dispositivo debe proporcionar la misma longitud al controlador. Sin embargo, es posible (como se muestra en el informe) modificar el valor para que provoque un bloqueo o p\u00e1nico debido a un desbordamiento. Este parche soluciona el problema a\u00f1adiendo el tama\u00f1o al contexto com\u00fan del dispositivo, de modo que p54_rx_eeprom_readback ya no depende de valores posiblemente manipulados. Dicho esto, tambi\u00e9n comprueba si el firmware alter\u00f3 el valor y ya no los copia. La \u00fanica peque\u00f1a ventaja es que, antes de que el controlador intente leer la EEPROM, necesita cargar un firmware. El firmware del proveedor tiene una licencia propietaria y, por ello, no est\u00e1 presente en la mayor\u00eda de las distribuciones por defecto."}], "id": "CVE-2025-38348", "lastModified": "2025-12-16T17:35:21.510", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-07-10T09:15:29.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0e4dc150423b829c35cbcf399481ca11594fc036"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/12134f79e53eb56b0b0b7447fa0c512acf6a8422"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1f7f8168abe8cbe845ab8bb557228d44784a6b57"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d05390d20f110de37d051a3e063ef0a542d01fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/714afb4c38edd19a057d519c1f9c5d164b43de94"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9701f842031b825e2fd5f22d064166f8f13f6e4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/da1b9a55ff116cb040528ef664c70a4eec03ae99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f39b2f8c1549a539846e083790fad396ef6cd802"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()", "id": "2379240", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2379240"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38348", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "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": "2025-07-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38348\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38348\nhttps://lore.kernel.org/linux-cve-announce/2025071036-CVE-2025-38348-ffc7@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:06:34.378611+00:00", "updated": "2025-07-13T11:06:34.378678+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}