248 lines
12 KiB
JSON
248 lines
12 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-2026-98687",
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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": "2026-09-25T10:25:14.364Z",
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"datePublished": "2026-10-18T15:45:58.719Z",
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"dateUpdated": "2026-10-30T12:38:45.242Z"
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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": "2026-10-30T12:38:45.242Z"
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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\nthunderbolt: Reject oversized XDomain properties responses\n\ntb_xdp_properties_request() allocates room for 45 data dwords in its\n252-byte response buffer. The XDomain length field is six bits wide,\nhowever, and a malicious peer can set it to 63. After the fixed response\nfields are subtracted, the driver treats this as 48 data dwords.\n\nCommit 322e93448d90 (\"thunderbolt: Clamp XDomain response data copy to\nallocation size\") only bounds the copy against data_len. If data_len is\nat least 48, memcpy() reads 192 bytes from the 180-byte res->data array,\ncausing a 12-byte heap out-of-bounds read. Commit 4db2bd2ed478\n(\"thunderbolt: Limit XDomain response copy to actual frame size\") limits\nthe earlier copy but does not constrain this header-derived length.\n\nReject response data lengths that exceed the allocated source buffer\nbefore copying them into the assembled property block."
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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/thunderbolt/xdomain.c"
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],
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"versions": [
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{
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"version": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "9fba032802b5858bc6186b34f8e966429ff155ab",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "7c028d2ae85eca86b82cab1163a9ac1187a2e666",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "37ea4304bd9f57ebe719409f010915495467f05c",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "b270c1074860de74da0d6b5250fb06b359b9d509",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "a766a86ff48acee76aeb8e2575771040749e509d",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "2f97f929dad9eb3e1f63b721d2dd49bf9bc68efa",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "737a1d2e9642d5f718bd29aa4a98b9eef3832f0a",
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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": "d1ff70241a275133e1a0258b7c23588b122276c8",
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"lessThan": "80756e263846ab694984e749e8c626897331438f",
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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/thunderbolt/xdomain.c"
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],
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"versions": [
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{
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"version": "4.15",
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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": "4.15",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.191",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.160",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.113",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.56",
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"lessThanOrEqual": "6.18.*",
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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": "7.2.10",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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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{
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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": "4.15",
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"versionEndExcluding": "5.10.273"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "5.15.224"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "6.1.191"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "6.6.160"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "6.12.113"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "6.18.56"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "7.2.10"
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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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"versionStartIncluding": "4.15",
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"versionEndExcluding": "7.3"
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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/9fba032802b5858bc6186b34f8e966429ff155ab"
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},
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{
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"url": "https://git.kernel.org/stable/c/7c028d2ae85eca86b82cab1163a9ac1187a2e666"
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},
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{
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"url": "https://git.kernel.org/stable/c/37ea4304bd9f57ebe719409f010915495467f05c"
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},
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{
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"url": "https://git.kernel.org/stable/c/b270c1074860de74da0d6b5250fb06b359b9d509"
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},
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{
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"url": "https://git.kernel.org/stable/c/a766a86ff48acee76aeb8e2575771040749e509d"
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},
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{
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"url": "https://git.kernel.org/stable/c/2f97f929dad9eb3e1f63b721d2dd49bf9bc68efa"
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},
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{
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"url": "https://git.kernel.org/stable/c/737a1d2e9642d5f718bd29aa4a98b9eef3832f0a"
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},
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{
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"url": "https://git.kernel.org/stable/c/80756e263846ab694984e749e8c626897331438f"
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}
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],
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"title": "thunderbolt: Reject oversized XDomain properties responses",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |