181 lines
7.5 KiB
JSON
181 lines
7.5 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-2026-42256",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-04-26T11:53:27.704Z",
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"datePublished": "2026-05-09T19:38:33.106Z",
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"dateUpdated": "2026-05-11T17:04:42.562Z"
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},
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"containers": {
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"cna": {
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"title": "net-imap: Denial of service via high iteration count for `SCRAM-*` authentication",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-1322",
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"lang": "en",
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"description": "CWE-1322: Use of Blocking Code in Single-threaded, Non-blocking Context",
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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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"descriptions": [
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{
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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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": 6,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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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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"name": "https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/ruby/net-imap/security/advisories/GHSA-87pf-fpwv-p7m7"
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},
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{
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"name": "https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/commit/158d0b505074397cdb5ceb58935e42dd2bcfa612"
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},
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{
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"name": "https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/commit/808001bc45c06f7297a7e96d341279e041a7f7f4"
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},
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{
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"name": "https://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/commit/99f59eab6064955a23debd95410263ad144df758"
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},
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{
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"name": "https://github.com/ruby/net-imap/releases/tag/v0.4.24",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/releases/tag/v0.4.24"
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},
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{
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"name": "https://github.com/ruby/net-imap/releases/tag/v0.5.14",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/releases/tag/v0.5.14"
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},
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{
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"name": "https://github.com/ruby/net-imap/releases/tag/v0.6.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ruby/net-imap/releases/tag/v0.6.4"
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}
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],
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"affected": [
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{
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"vendor": "ruby",
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"product": "net-imap",
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"versions": [
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{
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"version": ">= 0.4.0, < 0.4.24",
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"status": "affected"
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},
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{
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"version": ">= 0.5.0, < 0.5.14",
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"status": "affected"
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},
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{
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"version": ">= 0.6.0, < 0.6.4",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-05-09T19:38:33.106Z"
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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::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4."
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}
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],
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"source": {
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"advisory": "GHSA-87pf-fpwv-p7m7",
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"discovery": "UNKNOWN"
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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": "2026-05-11T17:04:26.784816Z",
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"id": "CVE-2026-42256",
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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": "2026-05-11T17:04:42.562Z"
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}
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}
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]
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}
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} |