168 lines
7.2 KiB
JSON
168 lines
7.2 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-2026-87079",
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"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"state": "PUBLISHED",
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"assignerShortName": "CPANSec",
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"dateReserved": "2026-09-08T19:22:20.005Z",
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"datePublished": "2026-09-22T07:24:47.784Z",
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"dateUpdated": "2026-09-22T17:07:28.687Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://cpan.org/modules",
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"defaultStatus": "unaffected",
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"modules": [
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"Net::IDN::Punycode"
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],
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"packageName": "Net-IDN-Encode",
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"packageURL": "pkg:cpan/Net-IDN-Encode",
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"programFiles": [
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"lib/Net/IDN/Punycode.xs",
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"lib/Net/IDN/Punycode/PP.pm"
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],
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"programRoutines": [
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{
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"name": "Net::IDN::Punycode::decode_punycode"
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},
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{
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"name": "Net::IDN::Punycode::PP::decode_punycode"
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}
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],
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"repo": "https://github.com/robrwo/Net-IDN-Encode",
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"versions": [
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{
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"lessThan": "2.590",
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"status": "affected",
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"version": "0",
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"versionType": "custom"
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}
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]
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Net::IDN::Punycode versions before 2.590 for Perl allow CPU exhaustion via quadratic insertion cost when decoding a long label in decode_punycode.\n\nThe XS backend inserts each decoded code point into a UTF-8 buffer and finds the insertion point by scanning that buffer from the start, one character at a time. The scan runs once per code point over the output built so far, so the cost is quadratic in the label length. The pure-Perl backend downgrades its input to bytes so that substr can index it directly, but takes its working copy before the downgrade, so when the input carries the UTF-8 flag every substr on the copy scans from the start, with the same quadratic cost.\n\nNothing bounds the label length in the to-Unicode direction. The 63-byte DNS limit is checked only when converting to ASCII, so domain_to_unicode and uts46_to_unicode pass an attacker-supplied label of any length to the decoder."
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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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"cweId": "CWE-407",
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"description": "CWE-407 Inefficient Algorithmic Complexity",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"shortName": "CPANSec",
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"dateUpdated": "2026-09-22T07:24:47.784Z"
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},
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"references": [
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{
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"tags": [
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"release-notes"
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],
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"url": "https://metacpan.org/release/PJCJ/Net-IDN-Encode-2.590-TRIAL/changes"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/robrwo/Net-IDN-Encode/commit/00d723423b66810af26b88c552bedc61975b3078.patch"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/robrwo/Net-IDN-Encode/commit/447c6b38ef5d4570329fa4f78690f4e14e09ba0c.patch"
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade to Net-IDN-Encode 2.590-TRIAL or later."
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Net::IDN::Punycode versions before 2.590 for Perl allow CPU exhaustion via quadratic insertion cost when decoding a long label in decode_punycode",
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"x_generator": {
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"engine": "cpansec-cna-tool 0.1"
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.5,
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"attackVector": "NETWORK",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "NONE"
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}
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},
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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": "2026-09-22T12:29:30.744292Z",
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"id": "CVE-2026-87079",
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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": "2026-09-22T12:31:19.170Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "http://www.openwall.com/lists/oss-security/2026/09/22/14"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-09-22T17:07:28.687Z"
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}
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}
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]
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}
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} |