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The vulnerability exists in both CUPS-Filters 1.x and the successor library libcupsfilters (CUPS-Filters 2.x). In CUPS-Filters 2.x, the vulnerable function is `_cfImageReadTIFF() in libcupsfilters`. When this function is invoked as part of `cfFilterImageToRaster()`, the caller passes a look-up-table during whose processing the out of bounds memory access happens. In CUPS-Filters 1.x, the equivalent functions are all found in the cups-filters repository, which is not split into subprojects yet, and the vulnerable code is in `_cupsImageReadTIFF()`, which is called through `cupsImageOpen()` from the `imagetoraster` tool. 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{"bugzilla": {"description": "cups: CUPS-Filters: Out-of-bounds Read/Write Vulnerability", "id": "2414632", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414632"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "(CWE-125|CWE-787)", "details": ["CUPS is a standards-based, open-source printing system, and `libcupsfilters` contains the code of the filters of the former `cups-filters` package as library functions to be used for the data format conversion tasks needed in Printer Applications. In CUPS-Filters versions up to and including 1.28.17 and libscupsfilters versions 2.0.0 through 2.1.1, CUPS-Filters's `imagetoraster` filter has an out of bounds read/write vulnerability in the processing of TIFF image files. While the pixel buffer is allocated with the number of pixels times a pre-calculated bytes-per-pixel value, the function which processes these pixels is called with a size of the number of pixels times 3. When suitable inputs are passed, the bytes-per-pixel value can be set to 1 and bytes outside of the buffer bounds get processed. In order to trigger the bug, an attacker must issue a print job with a crafted TIFF file, and pass appropriate print job options to control the bytes-per-pixel value of the output format. They must choose a printer configuration under which the `imagetoraster` filter or its C-function equivalent `cfFilterImageToRaster()` gets invoked. The vulnerability exists in both CUPS-Filters 1.x and the successor library libcupsfilters (CUPS-Filters 2.x). In CUPS-Filters 2.x, the vulnerable function is `_cfImageReadTIFF() in libcupsfilters`. When this function is invoked as part of `cfFilterImageToRaster()`, the caller passes a look-up-table during whose processing the out of bounds memory access happens. In CUPS-Filters 1.x, the equivalent functions are all found in the cups-filters repository, which is not split into subprojects yet, and the vulnerable code is in `_cupsImageReadTIFF()`, which is called through `cupsImageOpen()` from the `imagetoraster` tool. A patch is available in commit b69dfacec7f176281782e2f7ac44f04bf9633cfa."], "name": "CVE-2025-57812", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "cups-filters", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "libcupsfilters", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "cups-filters", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "cups-filters", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "cups-filters", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-12T18:46:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-57812\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-57812\nhttps://github.com/OpenPrinting/cups-filters/blob/3c58463e341b12c9d30d7d3807d2bac1bc595a78/cupsfilters/image-tiff.c#L34\nhttps://github.com/OpenPrinting/cups-filters/blob/3c58463e341b12c9d30d7d3807d2bac1bc595a78/filter/imagetoraster.c#L613\nhttps://github.com/OpenPrinting/libcupsfilters/blob/33421982e10f6a14bc0bab03b80c9cf4660e8d7d/cupsfilters/image-tiff.c#L32\nhttps://github.com/OpenPrinting/libcupsfilters/commit/b69dfacec7f176281782e2f7ac44f04bf9633cfa\nhttps://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-jpxg-qc2c-hgv4"], "threat_severity": "Low"}

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