114 lines
5.0 KiB
JSON
114 lines
5.0 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-2026-42806",
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"assignerOrgId": "c95f66b2-7e7c-41c5-8f09-6f86ec68659c",
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"state": "PUBLISHED",
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"assignerShortName": "bosch",
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"dateReserved": "2026-04-30T08:03:11.875Z",
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"datePublished": "2026-09-10T09:04:44.607Z",
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"dateUpdated": "2026-09-10T15:00:50.874Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "c95f66b2-7e7c-41c5-8f09-6f86ec68659c",
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"shortName": "bosch",
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"dateUpdated": "2026-09-10T09:04:44.607Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "An out-of-bounds read vulnerability was discovered in the Bosch BME690 SensorAPI (C-driver) in version v1.0.3 and prior, specifically within the field data parsing logic in read_all_field_data (bme69x.c).\r\n\r\nThe driver prefetches heater configuration registers into a contiguous 30-byte stack buffer (set_val) mapping IDAC, RES_HEAT, and GAS_WAIT tables.\r\n\r\nWhen parsing sensor field data, the gas_index is extracted using a 4-bit mask (0..15) but lacks boundary verification against the valid range (0..9).\r\n\r\nAn attacker or a compromised peripheral mimicking a sensor on the I2C/SPI bus could return a payload with a gas index value of 10 or higher.\r\n\r\nThis causes the driver to perform an out-of-bounds array access (set_val[20 + gas_index]), reading up to 6 bytes past the stack buffer.\r\n\r\nThe leaked out-of-bounds byte is then written into the public gas_wait field, which may lead to measurement corruption or leak adjacent stack memory when telemetered or logged."
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}
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],
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"affected": [
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{
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"vendor": "Bosch Sensortec",
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"product": "BME690 SensorAPI (C)",
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"versions": [
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{
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"version": "1.0.1",
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"status": "affected",
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"versionType": "custom",
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"lessThanOrEqual": "1.0.3"
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}
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]
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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-US",
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"description": "CWE-125 Out-of-bounds Read",
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"cweId": "CWE-125"
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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://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html",
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"name": "https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html",
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"tags": [
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"vendor-advisory"
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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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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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"attackVector": "PHYSICAL",
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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": "LOW",
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"integrityImpact": "LOW",
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"availabilityImpact": "LOW",
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"baseScore": 4.3,
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"baseSeverity": "MEDIUM"
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}
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}
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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": "2026-09-10T15:00:33.822497Z",
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"id": "CVE-2026-42806",
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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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},
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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": "2026-09-10T15:00:50.874Z"
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}
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}
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]
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}
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} |