{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T19:23:55.106","vulnerabilities":[{"cve":{"id":"CVE-2021-47427","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-05-21T15:15:28.117","lastModified":"2024-12-31T20:04:00.207","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: iscsi: Fix iscsi_task use after free\n\nCommit d39df158518c (\"scsi: iscsi: Have abort handler get ref to conn\")\nadded iscsi_get_conn()/iscsi_put_conn() calls during abort handling but\nthen also changed the handling of the case where we detect an already\ncompleted task where we now end up doing a goto to the common put/cleanup\ncode. This results in a iscsi_task use after free, because the common\ncleanup code will do a put on the iscsi_task.\n\nThis reverts the goto and moves the iscsi_get_conn() to after we've checked\nif the iscsi_task is valid."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: iscsi: corrige el uso after free de iscsi_task. Confirmación d39df158518c (\"scsi: iscsi: Have abort handler get ref to conn\") se agregaron llamadas iscsi_get_conn()/iscsi_put_conn() durante el manejo de abortos pero luego también cambió el manejo del caso en el que detectamos una tarea ya completada y ahora terminamos haciendo un acceso al código común de put/cleanup. Esto da como resultado un uso de iscsi_task después de la liberación, porque el código de limpieza común colocará iscsi_task. Esto revierte el ir a y mueve iscsi_get_conn() a después de haber verificado si iscsi_task es válido."}],"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:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.14.12","matchCriteriaId":"0212F5AF-8179-4A29-9B5A-E9060BD1F240"},{"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"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*","matchCriteriaId":"AF55383D-4DF2-45DC-93F7-571F4F978EAB"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1642f51ac0d4f2b55d5748094c49ff8f7191b93c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/258aad75c62146453d03028a44f2f1590d58e1f6","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}