160 lines
6.7 KiB
JSON
160 lines
6.7 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-2026-47667",
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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": "2026-05-19T21:10:38.797Z",
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"datePublished": "2026-07-21T19:57:49.446Z",
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"dateUpdated": "2026-07-23T14:13:10.735Z"
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},
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"containers": {
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"cna": {
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"title": "CImg Library: Uncontrolled Memory Allocation and Memory Leak in `_load_analyze()` via Crafted NIfTI/Analyze Header",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-401",
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"lang": "en",
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"description": "CWE-401: Missing Release of Memory after Effective Lifetime",
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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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"descriptions": [
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{
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"cweId": "CWE-789",
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"lang": "en",
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"description": "CWE-789: Memory Allocation with Excessive Size Value",
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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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"descriptions": [
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{
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"cweId": "CWE-1284",
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"lang": "en",
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"description": "CWE-1284: Improper Validation of Specified Quantity in Input",
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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/GreycLab/CImg/security/advisories/GHSA-rmfc-grgj-qwhv",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/GreycLab/CImg/security/advisories/GHSA-rmfc-grgj-qwhv"
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},
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{
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"name": "https://github.com/GreycLab/CImg/issues/480",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/GreycLab/CImg/issues/480"
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},
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{
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"name": "https://github.com/GreycLab/CImg/commit/6a69bf725ffd111a4c7dc61cc15e3661abd158ee",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/GreycLab/CImg/commit/6a69bf725ffd111a4c7dc61cc15e3661abd158ee"
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}
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],
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"affected": [
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{
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"vendor": "GreycLab",
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"product": "CImg",
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"versions": [
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{
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"version": "< 4.0.0",
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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": "2026-07-21T19:57:49.446Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "CImg Library is a C++ library for image processing. Prior to version 4.0.0 in `_load_analyze()`, the header_size field is read as an `unsigned int` from the first 4 bytes of an Analyze/NIfTI file and passed directly to `new unsigned char[header_size]` without being bounded against the actual file size. A value up to ~4 GB is accepted. If the subsequent `fread` returns `short` as it will for any malformed file), the function throws a `CImgIOException` and the allocated buffer is never freed. A 6-byte crafted file is sufficient to trigger an allocation of ~1.3 GB per call, with the full allocation leaked on every error path. The issue is reachable via `load_analyze()` and the generic `load()` when the file extension is .hdr, .img, or .nii. Version 4.0.0 fixes the issue."
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}
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],
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"source": {
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"advisory": "GHSA-rmfc-grgj-qwhv",
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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/GreycLab/CImg/issues/480",
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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": "2026-07-23T14:12:55.547375Z",
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"id": "CVE-2026-47667",
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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": "2026-07-23T14:13:10.735Z"
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}
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}
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]
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}
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} |