{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-02T11:26:33.043","vulnerabilities":[{"cve":{"id":"CVE-2021-47401","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-05-21T15:15:25.563","lastModified":"2025-09-26T19:03:45.330","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipack: ipoctal: fix stack information leak\n\nThe tty driver name is used also after registering the driver and must\nspecifically not be allocated on the stack to avoid leaking information\nto user space (or triggering an oops).\n\nDrivers should not try to encode topology information in the tty device\nname but this one snuck in through staging without anyone noticing and\nanother driver has since copied this malpractice.\n\nFixing the ABI is a separate issue, but this at least plugs the security\nhole."},{"lang":"es","value":" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipack: ipoctal: corrige la fuga de información de la pila. El nombre del controlador tty también se usa después de registrar el controlador y específicamente no debe asignarse en la pila para evitar filtrar información al espacio del usuario (o activar un ups). Los controladores no deberían intentar codificar información de topología en el nombre del dispositivo tty, pero este se coló durante la preparación sin que nadie se diera cuenta y desde entonces otro controlador copió esta mala práctica. Arreglar la ABI es un tema aparte, pero esto al menos tapa el agujero de seguridad."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-668"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"4.4.286","matchCriteriaId":"B0137812-4B0C-462B-9224-C3D479EEAD06"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"4.9.285","matchCriteriaId":"531DC051-E22F-4355-A06F-BE9AF2124AA3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"4.14.249","matchCriteriaId":"9DFC8239-9F26-43B2-A340-8EFC6BC6BDA8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.209","matchCriteriaId":"21C23429-F802-4256-B3C2-9EEA76AC11FF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.151","matchCriteriaId":"BFFC8E38-107A-4B6F-9FFD-9B2FD8B89EF0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.71","matchCriteriaId":"60C740E4-6C54-40CD-A914-2232D8FC781D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.14.10","matchCriteriaId":"1A437B0D-8305-4C72-B691-D26986A126CF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*","matchCriteriaId":"E46C74C6-B76B-4C94-A6A4-FD2FFF62D644"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*","matchCriteriaId":"60134C3A-06E4-48C1-B04F-2903732A4E56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*","matchCriteriaId":"0460DA88-8FE1-46A2-9DDA-1F1ABA552E71"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/acb96e782bad427ca4bb1bd94af660acd1462380","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/0a9c36a2e06a249acbed64e8e0b84637c2ad7575","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/2725925982dc96a78069cd118ea3d66759bfdad7","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5f6a309a699675680df15d9b6d389114515b4426","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/741ea2670e021350e54f491106bdaa22dc50e6a0","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/829f13d6079cf7a2465522f39acb43033e9b320d","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8657158a3b68c85234e6da3d8eae33d6183588b7","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a89936cce87d60766a75732a9e7e25c51164f47c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/acb96e782bad427ca4bb1bd94af660acd1462380","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}