188 lines
7.5 KiB
JSON
188 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-2026-12413",
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"assignerOrgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df",
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"state": "PUBLISHED",
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"assignerShortName": "libreswan",
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"dateReserved": "2026-06-16T15:52:12.674Z",
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"datePublished": "2026-07-02T21:19:22.177Z",
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"dateUpdated": "2026-07-07T17:02:12.976Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df",
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"shortName": "libreswan",
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"dateUpdated": "2026-07-02T21:19:22.177Z"
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},
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"title": "IKEv2 Denial of Service via malformed fragmentation",
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"descriptions": [
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{
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"lang": "en",
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"value": "An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemble_v2_incoming_fragments() would ignore unknown outer payloads but still store these in a fixed size array msg_digest.digest[PAYLIMIT]. An off-by-one error in the assertion PASSERT(logger, md->digest_roof < elemsof(md->digest)) causes the daemon to abort. No remote code execution is possible. Any configuration that allows IKEv2 connections that do not set fragmentation=no are vulnerable. IKEv1 is not affected."
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}
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],
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"affected": [
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{
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"vendor": "The Libreswan Project",
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"product": "libreswan",
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"versions": [
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{
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"version": "4.6",
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"status": "affected",
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"lessThanOrEqual": "5.3",
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"versionType": "semver"
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},
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{
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"version": "5.3.1",
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"status": "unaffected",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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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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"type": "CWE",
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"cweId": "CWE-193",
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"description": "Off-by-one Error"
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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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"type": "CWE",
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"cweId": "CWE-617",
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"description": "Reachable Assertion"
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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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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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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:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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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": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH"
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}
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},
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{
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"other": {
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"type": "vendorSeverity",
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"content": {
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"value": "MEDIUM",
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"description": "Vendor-assessed severity. The daemon automatically restarts after the crash, requiring continued exploitation for sustained denial of service."
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}
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}
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "If fragmentation is not needed, fragmentation=no can be added to all IKEv2 configurations. If fragmentation is needed, no workaround is possible and the fix needs to be applied."
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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 libreswan 5.3.1 or later. Patches for libreswan 4.15 and 5.3 are available at https://libreswan.org"
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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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"type": "finder",
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"value": "Hu Xinyao"
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}
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],
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"references": [
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{
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"name": "Libreswan Security Advisory",
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"url": "https://libreswan.org/security/CVE-2026-12413/CVE-2026-12413.txt"
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},
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{
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"name": "Libreswan CVE-2026-12413 Patches",
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"url": "https://libreswan.org/security/CVE-2026-12413/"
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}
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],
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"timeline": [
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{
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"time": "2026-06-16T00:00:00.000Z",
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"lang": "en",
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"value": "Libreswan notified of the issue via security@libreswan.org"
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},
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{
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"time": "2026-06-16T00:00:00.000Z",
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"lang": "en",
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"value": "Advanced notice given to supported customers and distributions"
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},
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{
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"time": "2026-06-24T00:00:00.000Z",
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"lang": "en",
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"value": "Public announcement and release of libreswan 5.3.1"
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}
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],
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"x_generator": {
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"engine": "cvelib 1.8.0"
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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": "2026-07-06T18:12:21.499364Z",
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"id": "CVE-2026-12413",
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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": "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": "2026-07-07T17:02:12.976Z"
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}
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}
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]
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}
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} |