gsd-2021-47055
Vulnerability from gsd
Modified
2024-03-01 06:04
Details
In the Linux kernel, the following vulnerability has been resolved:
mtd: require write permissions for locking and badblock ioctls
MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require
write permission. Depending on the hardware MEMLOCK might even be
write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK
is always write-once.
MEMSETBADBLOCK modifies the bad block table.
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-47055" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: require write permissions for locking and badblock ioctls\n\nMEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require\nwrite permission. Depending on the hardware MEMLOCK might even be\nwrite-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK\nis always write-once.\n\nMEMSETBADBLOCK modifies the bad block table.", "id": "GSD-2021-47055", "modified": "2024-03-01T06:04:48.288299Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2021-47055", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "1c9f9125892a", "version_value": "f4d28d8b9b0e" }, { "version_affected": "\u003c", "version_name": "583d42400532", "version_value": "9625b00cac66" }, { "version_affected": "\u003c", "version_name": "389c74c218d3", "version_value": "f73b29819c63" }, { "version_affected": "\u003c", "version_name": "ab1a602a9cea", "version_value": "75ed985bd6c8" }, { "version_affected": "\u003c", "version_name": "9a53e8bd59d9", "version_value": "5880afefe0cb" }, { "version_affected": "\u003c", "version_name": "f7e6b19bc764", "version_value": "7b6552719c0c" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "status": "affected", "version": "5.9" }, { "lessThan": "5.9", "status": "unaffected", "version": "0", "versionType": "custom" }, { "lessThanOrEqual": "4.4.*", "status": "unaffected", "version": "4.4.269", "versionType": "custom" }, { "lessThanOrEqual": "4.9.*", "status": "unaffected", "version": "4.9.269", "versionType": "custom" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.233", "versionType": "custom" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.191", "versionType": "custom" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.119", "versionType": "custom" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.37", "versionType": "custom" }, { "lessThanOrEqual": "5.11.*", "status": "unaffected", "version": "5.11.21", "versionType": "custom" }, { "lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.4", "versionType": "custom" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: require write permissions for locking and badblock ioctls\n\nMEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require\nwrite permission. Depending on the hardware MEMLOCK might even be\nwrite-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK\nis always write-once.\n\nMEMSETBADBLOCK modifies the bad block table." } ] }, "generator": { "engine": "bippy-851b3ed3d212" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf" }, { "name": "https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0" }, { "name": "https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee" }, { "name": "https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37" }, { "name": "https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981" }, { "name": "https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e" }, { "name": "https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b" }, { "name": "https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668" }, { "name": "https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366" } ] } }, "nvd.nist.gov": { "cve": { "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: require write permissions for locking and badblock ioctls\n\nMEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require\nwrite permission. Depending on the hardware MEMLOCK might even be\nwrite-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK\nis always write-once.\n\nMEMSETBADBLOCK modifies the bad block table." }, { "lang": "es", "value": "En el kernel de Linux se ha solucionado la siguiente vulnerabilidad: mtd: requiere permisos de escritura para bloqueo y badblock ioctls MEMLOCK, MEMUNLOCK y OTPLOCK modifican los bits de protecci\u00f3n. Por lo tanto, requiere permiso de escritura. Dependiendo del hardware, MEMLOCK podr\u00eda incluso ser de escritura \u00fanica, por ejemplo, para flashes SPI-NOR con su WP# vinculado a GND. OTPLOCK siempre se escribe una vez. MEMSETBADBLOCK modifica la tabla de bloques defectuosos." } ], "id": "CVE-2021-47055", "lastModified": "2024-03-01T14:04:26.010", "metrics": {}, "published": "2024-02-29T23:15:07.473", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" } } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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