191 lines
7.6 KiB
JSON
191 lines
7.6 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-71973",
|
|
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "VulnCheck",
|
|
"dateReserved": "2026-08-08T16:43:04.178Z",
|
|
"datePublished": "2026-09-29T21:29:21.349Z",
|
|
"dateUpdated": "2026-10-02T12:29:17.608Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"shortName": "VulnCheck",
|
|
"dateUpdated": "2026-09-29T21:29:21.349Z"
|
|
},
|
|
"datePublic": "2026-07-28T00:00:00.000Z",
|
|
"title": "U-Boot before 2026.10-rc4 Integer Overflow in SquashFS Directory Table Allocation",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "U-Boot before 2026.10-rc4 contains an integer overflow vulnerability in sqfs_read_directory_table() function when allocating the directory table buffer. Attackers can supply a crafted SquashFS image with an attacker-controlled superblock metablks_count value that causes heap buffer under-allocation and out-of-bounds writes, corrupting heap memory and crashing the bootloader."
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"description": "Integer Overflow or Wraparound",
|
|
"cweId": "CWE-190",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "u-boot",
|
|
"product": "u-boot",
|
|
"repo": "https://github.com/u-boot/u-boot",
|
|
"packageURL": "pkg:github/u-boot/u-boot",
|
|
"defaultStatus": "unaffected",
|
|
"versions": [
|
|
{
|
|
"version": "0",
|
|
"lessThan": "2026.10-rc4",
|
|
"status": "affected",
|
|
"versionType": "custom"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*",
|
|
"versionEndExcluding": "2026.10-rc4"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV4_0": {
|
|
"version": "4.0",
|
|
"vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
|
|
"attackVector": "PHYSICAL",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "NONE",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "NONE",
|
|
"vulnConfidentialityImpact": "NONE",
|
|
"vulnIntegrityImpact": "LOW",
|
|
"vulnAvailabilityImpact": "HIGH",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"subAvailabilityImpact": "NONE",
|
|
"baseScore": 5.2,
|
|
"baseSeverity": "MEDIUM"
|
|
}
|
|
},
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
|
|
"attackVector": "PHYSICAL",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "LOW",
|
|
"availabilityImpact": "HIGH",
|
|
"baseScore": 5.2,
|
|
"baseSeverity": "MEDIUM"
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/u-boot/u-boot/commit/561ae28cb56a082cfa90c1c421c4955bc215470b",
|
|
"tags": [
|
|
"patch"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://github.com/u-boot/u-boot/blob/v2026.07/fs/squashfs/sqfs.c#L814",
|
|
"tags": [
|
|
"technical-description"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://github.com/u-boot/u-boot",
|
|
"tags": [
|
|
"product"
|
|
]
|
|
},
|
|
{
|
|
"name": "VulnCheck Advisory: U-Boot before 2026.10-rc4 Integer Overflow in SquashFS Directory Table Allocation",
|
|
"tags": [
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc4-integer-overflow-in-squashfs-directory-table-allocation"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Shahriyar Jalayeri (ByteRay Ltd.)",
|
|
"type": "finder"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"value": "Mehrun P. Hunter (ByteRay Ltd.)",
|
|
"type": "finder"
|
|
}
|
|
],
|
|
"x_generator": {
|
|
"engine": "vulncheck-endgame"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-10-02T12:29:06.594431Z",
|
|
"id": "CVE-2026-71973",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-02T12:29:17.608Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |