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https://github.com/fkie-cad/nvd-json-data-feeds.git
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102 lines
3.9 KiB
JSON
102 lines
3.9 KiB
JSON
{
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"id": "CVE-2024-46762",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-09-18T08:15:04.570",
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"lastModified": "2024-09-23T16:12:34.420",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxen: privcmd: Fix possible access to a freed kirqfd instance\n\nNothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and\nprivcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd\ncreated and added to the irqfds_list by privcmd_irqfd_assign() may get\nremoved by another thread executing privcmd_irqfd_deassign(), while the\nformer is still using it after dropping the locks.\n\nThis can lead to a situation where an already freed kirqfd instance may\nbe accessed and cause kernel oops.\n\nUse SRCU locking to prevent the same, as is done for the KVM\nimplementation for irqfds."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xen: privcmd: Fix possible access to a freed kirqfd instance Nada impide llamadas ioctl simult\u00e1neas a privcmd_irqfd_assign() y privcmd_irqfd_deassign(). Si eso sucede, es posible que un kirqfd creado y agregado a la irqfds_list por privcmd_irqfd_assign() pueda ser eliminado por otro hilo que ejecuta privcmd_irqfd_deassign(), mientras que el primero todav\u00eda lo est\u00e1 usando despu\u00e9s de eliminar los bloqueos. Esto puede llevar a una situaci\u00f3n en la que se puede acceder a una instancia kirqfd ya liberada y causar errores del kernel. Use el bloqueo SRCU para evitar lo mismo, como se hace para la implementaci\u00f3n de KVM para irqfds."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-416"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.6.51",
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"matchCriteriaId": "D4954ED0-8229-4D57-B4B3-CB5154734977"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.10.10",
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"matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/112fd2f02b308564724b8e81006c254d20945c4b",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Patch"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/611ff1b1ae989a7bcce3e2a8e132ee30e968c557",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Patch"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/e997b357b13a7d95de31681fc54fcc34235fa527",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Patch"
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]
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}
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]
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} |