126 lines
5.0 KiB
JSON
126 lines
5.0 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-2026-43894",
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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": "2026-05-04T15:17:09.330Z",
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"datePublished": "2026-05-11T17:20:06.055Z",
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"dateUpdated": "2026-05-11T18:32:43.668Z"
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},
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"containers": {
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"cna": {
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"title": "jq: Wild stack write via signed-integer overflow in decNumber D2U() macro",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-190",
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"lang": "en",
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"description": "CWE-190: Integer Overflow or Wraparound",
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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": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 6.2,
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"baseSeverity": "MEDIUM",
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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:L/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/jqlang/jq/security/advisories/GHSA-5v7p-2r57-2g4g",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/jqlang/jq/security/advisories/GHSA-5v7p-2r57-2g4g"
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}
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],
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"affected": [
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{
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"vendor": "jqlang",
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"product": "jq",
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"versions": [
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{
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"version": "<= 1.8.1",
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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": "2026-05-11T17:20:06.055Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "jq is a command-line JSON processor. In 1.8.1 and earlier, when decNumberFromString is given a number literal of INT_MAX-1 (2147483646) digits, the D2U() macro overflows during signed-int arithmetic. The wrapped negative value bypasses the heap-allocation size check, causes the function to use a 30-byte stack buffer, and then writes ≈715 million 16-bit units (≈1.4 GiB) at an offset 1.43 GiB below the stack frame. The written content is fully attacker-controlled (the parsed decimal digits, packed 3-per-unit)."
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}
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],
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"source": {
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"advisory": "GHSA-5v7p-2r57-2g4g",
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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/jqlang/jq/security/advisories/GHSA-5v7p-2r57-2g4g",
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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": "2026-05-11T18:32:08.384699Z",
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"id": "CVE-2026-43894",
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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": "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": "2026-05-11T18:32:43.668Z"
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}
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}
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]
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}
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} |