132 lines
5.4 KiB
JSON
132 lines
5.4 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-2026-61720",
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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": "2026-07-10T18:51:13.920Z",
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"datePublished": "2026-09-18T20:03:43.989Z",
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"dateUpdated": "2026-09-21T16:27:25.573Z"
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},
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"containers": {
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"cna": {
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"title": "FluidSynth: SF2 DMOD Chunk Unsigned Underflow",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-191",
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"lang": "en",
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"description": "CWE-191: Integer Underflow (Wrap 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/FluidSynth/fluidsynth/security/advisories/GHSA-rmc4-c8hw-455w",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-rmc4-c8hw-455w"
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},
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{
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"name": "https://github.com/FluidSynth/fluidsynth/commit/096e1ff0d09ddcac83d94923440706f76f94bc44",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/FluidSynth/fluidsynth/commit/096e1ff0d09ddcac83d94923440706f76f94bc44"
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},
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{
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"name": "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6"
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}
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],
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"affected": [
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{
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"vendor": "FluidSynth",
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"product": "fluidsynth",
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"versions": [
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{
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"version": ">= 2.5.0, < 2.5.6",
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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": "2026-09-18T20:03:43.989Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the SF2 parser computes the DMOD modulator count as chunk.size / SF_MOD_SIZE - 1 without rejecting chunks smaller than one record. A crafted SF2 file containing a zero-sized DMOD chunk makes the unsigned subtraction wrap to UINT_MAX, and the parser then attempts billions of SFMod allocations. This exhausts process memory and causes denial of service. No workaround is available. This issue is fixed in version 2.5.6."
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}
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],
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"source": {
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"advisory": "GHSA-rmc4-c8hw-455w",
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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": "2026-09-21T16:27:05.665077Z",
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"id": "CVE-2026-61720",
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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": "2026-09-21T16:27:25.573Z"
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}
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}
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]
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}
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} |