136 lines
5.5 KiB
JSON
136 lines
5.5 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-2026-32738",
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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": "2026-03-13T15:02:00.628Z",
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"datePublished": "2026-05-19T19:03:48.553Z",
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"dateUpdated": "2026-05-19T19:38:59.260Z"
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},
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"containers": {
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"cna": {
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"title": "libheif has a Heap OOB Read/SEGV Crash via Zero samples_per_chunk",
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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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"descriptions": [
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{
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"cweId": "CWE-476",
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"lang": "en",
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"description": "CWE-476: NULL Pointer Dereference",
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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": 6.5,
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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": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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/strukturag/libheif/security/advisories/GHSA-7f2h-cmpf-v9ww",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/strukturag/libheif/security/advisories/GHSA-7f2h-cmpf-v9ww"
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}
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],
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"affected": [
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{
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"vendor": "strukturag",
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"product": "libheif",
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"versions": [
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{
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"version": "< 1.22.0",
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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": "2026-05-19T19:03:48.553Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samples_per_chunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor (m_last_sample = 0 + 0 - 1 = UINT32_MAX), mapping all samples to an empty chunk and resulting in a denial of service. When any sample is accessed, the library reads from index 0 of an empty std::vector, causing a guaranteed SEGV (null-page read). The file parses successfully without producing an error; the crash occurs on the first frame access. This issue has been fixed in version 1.22.0."
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}
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],
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"source": {
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"advisory": "GHSA-7f2h-cmpf-v9ww",
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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/strukturag/libheif/security/advisories/GHSA-7f2h-cmpf-v9ww",
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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": "2026-05-19T19:35:48.534273Z",
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"id": "CVE-2026-32738",
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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": "2026-05-19T19:38:59.260Z"
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}
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}
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]
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}
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} |