{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68431", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-12-17T15:29:39.380Z", "datePublished": "2025-12-29T19:09:54.628Z", "dateUpdated": "2025-12-30T22:26:20.374Z"}, "containers": {"cna": {"title": "libheif has Potential Heap Buffer Over-Read", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-190", "lang": "en", "description": "CWE-190: Integer Overflow or Wraparound", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/strukturag/libheif/security/advisories/GHSA-j87x-4gmq-cqfq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-j87x-4gmq-cqfq"}, {"name": "https://github.com/strukturag/libheif/commit/b8c12a7b70f46c9516711a988483bed377b78d46", "tags": ["x_refsource_MISC"], "url": "https://github.com/strukturag/libheif/commit/b8c12a7b70f46c9516711a988483bed377b78d46"}, {"name": "https://github.com/strukturag/libheif/releases/tag/v1.21.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/strukturag/libheif/releases/tag/v1.21.0"}], "affected": [{"vendor": "strukturag", "product": "libheif", "versions": [{"version": "< 1.21.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-12-29T19:09:54.628Z"}, "descriptions": [{"lang": "en", "value": "libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes."}], "source": {"advisory": "GHSA-j87x-4gmq-cqfq", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-30T21:54:12.455580Z", "id": "CVE-2025-68431", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-30T22:26:20.374Z"}}]}}

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