mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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103 lines
3.9 KiB
JSON
103 lines
3.9 KiB
JSON
{
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"id": "CVE-2021-47604",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-06-19T15:15:54.973",
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"lastModified": "2024-11-21T06:36:39.020",
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"vulnStatus": "Modified",
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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\nvduse: check that offset is within bounds in get_config()\n\nThis condition checks \"len\" but it does not check \"offset\" and that\ncould result in an out of bounds read if \"offset > dev->config_size\".\nThe problem is that since both variables are unsigned the\n\"dev->config_size - offset\" subtraction would result in a very high\nunsigned value.\n\nI think these checks might not be necessary because \"len\" and \"offset\"\nare supposed to already have been validated using the\nvhost_vdpa_config_validate() function. But I do not know the code\nperfectly, and I like to be safe."
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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: vduse: verifique que el desplazamiento est\u00e9 dentro de los l\u00edmites en get_config() Esta condici\u00f3n verifica \"len\" pero no verifica \"desplazamiento\" y eso podr\u00eda resultar en una lectura fuera de los l\u00edmites si \" desplazamiento > dev->config_size\". El problema es que, dado que ambas variables no est\u00e1n firmadas, la resta \"dev->config_size - offset\" dar\u00eda como resultado un valor sin firmar muy alto. Creo que estas comprobaciones podr\u00edan no ser necesarias porque se supone que \"len\" y \"offset\" ya se han validado mediante la funci\u00f3n vhost_vdpa_config_validate(). Pero no conozco el c\u00f3digo a la perfecci\u00f3n y me gusta estar seguro."
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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:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH",
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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": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 5.2
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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-125"
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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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"versionStartIncluding": "5.15",
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"versionEndExcluding": "5.15.11",
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"matchCriteriaId": "7A70FD7B-2EDC-4C3B-ADE0-880AA759CDD7"
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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/dc1db0060c02d119fd4196924eff2d1129e9a442",
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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/ebbbc5fea3f648175df1aa3f127c78eb0252cc2a",
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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/dc1db0060c02d119fd4196924eff2d1129e9a442",
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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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/ebbbc5fea3f648175df1aa3f127c78eb0252cc2a",
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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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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} |