126 lines
5.2 KiB
JSON
126 lines
5.2 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-2026-40613",
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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": "2026-04-14T14:07:59.642Z",
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"datePublished": "2026-04-21T18:00:53.342Z",
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"dateUpdated": "2026-04-21T20:36:46.136Z"
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},
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"containers": {
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"cna": {
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"title": "Coturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-704",
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"lang": "en",
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"description": "CWE-704: Incorrect Type Conversion or Cast",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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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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"version": "3.1"
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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/coturn/coturn/security/advisories/GHSA-j662-9wcj-mf36",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/coturn/coturn/security/advisories/GHSA-j662-9wcj-mf36"
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}
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],
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"affected": [
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{
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"vendor": "coturn",
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"product": "coturn",
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"versions": [
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{
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"version": "< 4.10.0",
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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": "2026-04-21T18:00:53.342Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.10.0, the STUN/TURN attribute parsing functions in coturn perform unsafe pointer casts from uint8_t * to uint16_t * without alignment checks. When processing a crafted STUN message with odd-aligned attribute boundaries, this results in misaligned memory reads at ns_turn_msg.c. On ARM64 architectures (AArch64) with strict alignment enforcement, this causes a SIGBUS signal that immediately kills the turnserver process. An unauthenticated remote attacker can crash any ARM64 coturn deployment by sending a single crafted UDP packet. This vulnerability is fixed in 4.10.0."
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}
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],
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"source": {
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"advisory": "GHSA-j662-9wcj-mf36",
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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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"references": [
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{
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"url": "https://github.com/coturn/coturn/security/advisories/GHSA-j662-9wcj-mf36",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-04-21T19:54:32.854613Z",
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"id": "CVE-2026-40613",
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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": "2026-04-21T20:36:46.136Z"
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}
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}
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]
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}
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} |