164 lines
7.1 KiB
JSON
164 lines
7.1 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-2026-55894",
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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": "2026-06-17T16:59:42.760Z",
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"datePublished": "2026-08-20T21:31:37.680Z",
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"dateUpdated": "2026-08-21T15:00:05.011Z"
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},
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"containers": {
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"cna": {
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"title": "Capstone SH disassembler `sh_disassemble` out-of-bounds read via crafted SH2A bytecode",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-125",
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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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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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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 6.8,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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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/capstone-engine/capstone/security/advisories/GHSA-gf2c-xwcp-hvf4",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-gf2c-xwcp-hvf4"
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},
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{
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"name": "https://github.com/capstone-engine/capstone/pull/2968",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/capstone-engine/capstone/pull/2968"
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},
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{
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"name": "https://github.com/capstone-engine/capstone/pull/2969",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/capstone-engine/capstone/pull/2969"
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},
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{
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"name": "https://github.com/capstone-engine/capstone/commit/09e76802380b9e94d9720c44458d9d5282219e7e",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/capstone-engine/capstone/commit/09e76802380b9e94d9720c44458d9d5282219e7e"
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},
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{
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"name": "https://github.com/capstone-engine/capstone/commit/e17ee44a8307ea33375b4727ac4f987650bf7bed",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/capstone-engine/capstone/commit/e17ee44a8307ea33375b4727ac4f987650bf7bed"
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},
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{
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"name": "https://github.com/capstone-engine/capstone/releases/tag/6.0.0-Alpha10",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/capstone-engine/capstone/releases/tag/6.0.0-Alpha10"
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}
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],
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"affected": [
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{
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"vendor": "capstone-engine",
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"product": "capstone",
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"versions": [
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{
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"version": "< 6.0.0-Alpha10",
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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": "2026-08-20T21:31:37.680Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Capstone is a disassembly framework. In 6.0.0-Alpha9 and earlier, Capstone's arch/SH/SHDisassembler.c sh_disassemble() function computes an idx value from a raw 16-bit instruction without ensuring it is within the active mode-specific decode[] function-pointer table. An application using CS_ARCH_SH with CS_MODE_SH2A or CS_MODE_SH4A and CS_MODE_SHFPU can pass crafted bytecode through cs_disasm_iter() or cs_disasm(), causing the decode[idx] test to read outside the table and terminate the process with a segmentation fault. No code execution or information disclosure was demonstrated. This issue is fixed in version 6.0.0-Alpha10."
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}
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],
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"source": {
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"advisory": "GHSA-gf2c-xwcp-hvf4",
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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/capstone-engine/capstone/security/advisories/GHSA-gf2c-xwcp-hvf4",
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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": "2026-08-21T14:59:57.566989Z",
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"id": "CVE-2026-55894",
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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": "2026-08-21T15:00:05.011Z"
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}
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}
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]
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}
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} |