153 lines
6.4 KiB
JSON
153 lines
6.4 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-2026-69184",
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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": "2026-08-03T16:00:23.482Z",
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"datePublished": "2026-09-18T17:26:52.210Z",
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"dateUpdated": "2026-09-21T20:48:59.663Z"
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},
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"containers": {
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"cna": {
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"title": "c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains",
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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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"lang": "en",
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"description": "CWE-407: Inefficient Algorithmic Complexity",
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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/c-ares/c-ares/security/advisories/GHSA-pjmc-gx33-gc76",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/c-ares/c-ares/security/advisories/GHSA-pjmc-gx33-gc76"
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},
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{
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"name": "https://github.com/c-ares/c-ares/pull/1164",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/c-ares/c-ares/pull/1164"
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},
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{
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"name": "https://github.com/c-ares/c-ares/pull/1210",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/c-ares/c-ares/pull/1210"
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},
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{
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"name": "https://github.com/c-ares/c-ares/commit/5c8341ba6ff3a8e4e4dfd616f8ed0418838b8b7b",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/c-ares/c-ares/commit/5c8341ba6ff3a8e4e4dfd616f8ed0418838b8b7b"
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},
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{
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"name": "https://github.com/c-ares/c-ares/commit/f1288bbc70e9a1e0a77134c2382157e52d326aea",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/c-ares/c-ares/commit/f1288bbc70e9a1e0a77134c2382157e52d326aea"
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},
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{
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"name": "https://github.com/c-ares/c-ares/releases/tag/v1.34.7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/c-ares/c-ares/releases/tag/v1.34.7"
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}
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],
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"affected": [
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{
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"vendor": "c-ares",
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"product": "c-ares",
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"versions": [
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{
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"version": "< 1.34.7",
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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": "2026-09-18T17:26:52.210Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_name_parse() enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain and many resource records whose NAME or RDATA fields refer to the chain, causing repeated decompression work that grows quadratically with message size. A single crafted response can stall the single-threaded c-ares event loop and deny DNS resolution, without causing memory corruption or information disclosure. This issue is fixed in version 1.34.7."
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}
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],
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"source": {
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"advisory": "GHSA-pjmc-gx33-gc76",
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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": "2026-09-18T20:13:18.897117Z",
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"id": "CVE-2026-69184",
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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": "2026-09-21T20:48:59.663Z"
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}
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}
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]
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}
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} |