181 lines
7.3 KiB
JSON
181 lines
7.3 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-2026-110714",
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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": "2026-10-14T14:39:52.603Z",
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"datePublished": "2026-10-14T15:01:29.077Z",
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"dateUpdated": "2026-10-20T01:29:23.174Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-10-14T15:01:29.077Z"
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},
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"datePublic": "2026-07-10T00:00:00.000Z",
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"title": "libsmb2 through 6.2 Heap Out-of-Bounds Read via decode_acl Integer Underflow",
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"descriptions": [
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{
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"lang": "en",
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"value": "libsmb2 through 6.2 contains an integer underflow vulnerability in decode_acl that allows malicious SMB servers to trigger heap out-of-bounds reads via crafted security descriptors. Attackers controlling a server or intercepting unsigned sessions can send an AclSize below 8 in a QUERY_INFO reply, bypassing ACE bounds checks and crashing the client."
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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": "Integer Underflow (Wrap or Wraparound)",
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"cweId": "CWE-191",
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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": "sahlberg",
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"product": "libsmb2",
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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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"status": "affected",
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"versionType": "custom",
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"lessThanOrEqual": "6.2"
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}
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],
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"collectionURL": "https://github.com/sahlberg/libsmb2",
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"repo": "https://github.com/sahlberg/libsmb2"
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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:P/VC:N/VI:N/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": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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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": 7.1,
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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:R/S:U/C:N/I:N/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": "REQUIRED",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseScore": 6.5,
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"baseSeverity": "MEDIUM"
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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://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read",
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"tags": [
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"technical-description",
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"exploit"
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]
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},
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{
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"url": "https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-security-descriptor.c#L266",
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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/sahlberg/libsmb2/commit/523abe20be3207011a936db47f1d3bab79c05450",
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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/sahlberg/libsmb2",
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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: libsmb2 through 6.2 Heap Out-of-Bounds Read via decode_acl Integer Underflow",
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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/libsmb2-through-6.2-heap-out-of-bounds-read-via-decode-acl-integer-underflow"
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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": "韓佳翰",
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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": "HaiND from the Post and Telecommunication Institute of Technology",
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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": "2026-10-20T01:29:12.014593Z",
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"id": "CVE-2026-110714",
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"options": [
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{
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"Exploitation": "poc"
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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": "2026-10-20T01:29:23.174Z"
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}
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}
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]
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}
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} |