191 lines
7.5 KiB
JSON
191 lines
7.5 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-2026-74220",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-08-14T18:01:19.915Z",
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"datePublished": "2026-09-29T21:29:22.617Z",
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"dateUpdated": "2026-09-30T14:04:58.483Z"
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},
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"containers": {
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"dateUpdated": "2026-09-29T21:29:22.617Z"
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},
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"datePublic": "2026-08-19T00:00:00.000Z",
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"title": "U-Boot before 2026.10-rc5 Buffer Overflow via NFS READ Reply",
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"descriptions": [
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{
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"lang": "en",
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"value": "U-Boot before 2026.10-rc5 contains a buffer overflow in nfs_read_reply() function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the destination buffer, crashing the bootloader or corrupting memory."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Signed to Unsigned Conversion Error",
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"cweId": "CWE-195",
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"type": "CWE"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "u-boot",
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"product": "u-boot",
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"repo": "https://github.com/u-boot/u-boot",
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"packageURL": "pkg:github/u-boot/u-boot",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "0",
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"lessThan": "2026.10-rc5",
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"status": "affected",
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"versionType": "custom"
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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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{
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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:a:denx:u-boot:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2026.10-rc5"
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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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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "LOW",
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"availabilityImpact": "HIGH",
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"baseScore": 8.2,
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"baseSeverity": "HIGH"
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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://github.com/u-boot/u-boot/commit/0bbf09859658b8cc9ac13be41af23b516b8ef69a",
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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://github.com/u-boot/u-boot/blob/v2026.07/net/nfs-common.c#L695",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/u-boot/u-boot",
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"tags": [
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"product"
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]
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},
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{
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"name": "VulnCheck Advisory: U-Boot before 2026.10-rc5 Buffer Overflow via NFS READ Reply",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-buffer-overflow-via-nfs-read-reply"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Shahriyar Jalayeri (ByteRay Ltd.)",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Mehrun P. Hunter (ByteRay Ltd.)",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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},
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"adp": [
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{
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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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"timestamp": "2026-09-30T14:04:49.999144Z",
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"id": "CVE-2026-74220",
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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": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-09-30T14:04:58.483Z"
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}
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}
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]
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}
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} |