188 lines
7.4 KiB
JSON
188 lines
7.4 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-2026-58058",
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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": "2026-06-28T00:58:47.763Z",
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"datePublished": "2026-06-28T01:32:59.336Z",
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"dateUpdated": "2026-06-29T14:53:48.365Z"
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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": "2026-06-28T01:32:59.336Z"
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},
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"datePublic": "2026-06-25T00:00:00.000Z",
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"title": "Nmap - Integer Underflow in IPv6 Extension Header Parsing",
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"descriptions": [
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{
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"lang": "en",
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"value": "Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans."
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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": "Nmap",
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"product": "Nmap",
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"defaultStatus": "affected",
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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": "7.99"
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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:nmap:nmap:*:*:*:*:*:*:*:*",
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"versionEndIncluding": "7.99"
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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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"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:L/I:N/A:L",
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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": "LOW",
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"integrityImpact": "NONE",
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"availabilityImpact": "LOW",
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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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"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:L/VI:N/VA:L/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": "LOW",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 6.9,
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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://github.com/bikini/exploitarium/tree/main/nmap-ipv6-extlen-wrap-poc",
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"name": "Proof of Concept",
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"tags": [
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"exploit",
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"third-party-advisory"
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]
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},
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{
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"url": "https://github.com/nmap/nmap/commit/bb6754e76bb1686315008e1aa1c40202a513fb83",
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"name": "Fix commit (dev tree)",
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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://nmap.org/changelog.html",
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"name": "Nmap Change Log",
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"tags": [
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"release-notes"
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]
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},
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{
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"name": "VulnCheck Advisory: Nmap - Integer Underflow in IPv6 Extension Header Parsing",
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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/nmap-integer-underflow-in-ipv6-extension-header-parsing"
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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": "Himanshu Anand",
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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": "2026-06-29T14:49:07.833303Z",
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"id": "CVE-2026-58058",
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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": "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": "2026-06-29T14:53:48.365Z"
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}
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}
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]
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}
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} |