367 lines
17 KiB
JSON
367 lines
17 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2021-47475",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-05-22T06:20:56.200Z",
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"datePublished": "2024-05-22T08:19:29.423Z",
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"dateUpdated": "2026-05-11T13:55:24.292Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T13:55:24.292Z"
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},
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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\ncomedi: vmk80xx: fix transfer-buffer overflows\n\nThe driver uses endpoint-sized USB transfer buffers but up until\nrecently had no sanity checks on the sizes.\n\nCommit e1f13c879a7c (\"staging: comedi: check validity of wMaxPacketSize\nof usb endpoints found\") inadvertently fixed NULL-pointer dereferences\nwhen accessing the transfer buffers in case a malicious device has a\nzero wMaxPacketSize.\n\nMake sure to allocate buffers large enough to handle also the other\naccesses that are done without a size check (e.g. byte 18 in\nvmk80xx_cnt_insn_read() for the VMK8061_MODEL) to avoid writing beyond\nthe buffers, for example, when doing descriptor fuzzing.\n\nThe original driver was for a low-speed device with 8-byte buffers.\nSupport was later added for a device that uses bulk transfers and is\npresumably a full-speed device with a maximum 64-byte wMaxPacketSize."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/comedi/drivers/vmk80xx.c"
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],
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"versions": [
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "5229159f1d052821007aff1a1beb7873eacf1a9f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "ec85bcff4ed09260243d8f39faba99e1041718ba",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "40d2a7e278e2e7c0a5fd7e997e7eb63945bf93f7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "7a2021b896de1ad559d33b5c5cdd20b982242088",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "199acd8c110e3ae62833c24f632b0bb1c9f012a9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "33d7a470730dfe7c9bfc8da84575cf2cedd60d00",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "278484ae93297b1bb1ce755f9d3b6d95a48c7d47",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "06ac746d57e6d32b062e220415c607b7e2e0fa50",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "985cafccbf9b7f862aa1c5ee566801e18b5161fb",
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"lessThan": "a23461c47482fc232ffc9b819539d1f837adf2b1",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/comedi/drivers/vmk80xx.c"
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],
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"versions": [
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{
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"version": "2.6.31",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.31",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.4.292",
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"lessThanOrEqual": "4.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.290",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.255",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.217",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.159",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.79",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.14.18",
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"lessThanOrEqual": "5.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.2",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.31",
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"versionEndExcluding": "4.4.292"
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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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"versionEndExcluding": "4.9.290"
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},
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{
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"url": "https://git.kernel.org/stable/c/33d7a470730dfe7c9bfc8da84575cf2cedd60d00"
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{
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"url": "https://git.kernel.org/stable/c/06ac746d57e6d32b062e220415c607b7e2e0fa50"
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{
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"url": "https://git.kernel.org/stable/c/a23461c47482fc232ffc9b819539d1f837adf2b1"
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}
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],
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"title": "comedi: vmk80xx: fix transfer-buffer overflows",
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}
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"adp": [
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{
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"title": "CISA ADP Vulnrichment",
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2021-47475",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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"Technical Impact": "partial"
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],
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"version": "2.0.3",
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"timestamp": "2024-05-22T17:52:35.271810Z"
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} |