Description

An issue was discovered in camera in Samsung Mobile Processor Exynos 1330, 1380, 1480, 2400, 1580, 2500, 2600, and 1680. A stack-based buffer overflow occurs when a malformed message is sent to the camera driver, causing a denial of service.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.5",
  "pubDate": "2026-09-14T02:17:14.850Z",
  "pubdate": "2026-09-14T02:17:14.850Z",
  "executiveSummary": "A critical stack-based buffer overflow vulnerability has been identified within the camera driver integrated into various Samsung Mobile Processor Exynos chipsets, specifically the 1330, 1380, 1480, 2400, 1580, 2500, 2600, and 1680 models.\nThe vulnerability originates from improper boundary validation when processing messages sent to the camera driver interface.\nSuccessful exploitation of this flaw leads to a denial of service (DoS) state, effectively crashing the camera subsystem or potentially inducing system instability.\nThis vulnerability represents a significant security risk for affected Samsung mobile devices, as it allows for an unauthenticated or low-privilege actor—provided they have a path to interact with the camera driver—to disrupt essential hardware functionality.\nThe attack is triggered by the transmission of a specially crafted, malformed message that exceeds the allocated buffer capacity on the stack, leading to memory corruption.",
  "technicalDetails": "The root cause of this vulnerability is a classic stack-based buffer overflow occurring within the memory space allocated for the camera driver's message handling routines.\nIn the affected Exynos chipsets (1330, 1380, 1480, 2400, 1580, 2500, 2600, and 1680), the camera driver fails to implement robust input validation or bounds checking when processing incoming data structures or commands directed to the driver's interface.\nWhen a malformed message is transmitted to the driver, the data exceeds the predetermined size of the local stack buffer. Because the driver software lacks sufficient bounds checking, the overflow permits the overwriting of adjacent memory locations on the kernel stack.\nTypically, this includes the overwriting of critical stack data, such as saved frame pointers, return addresses, or local function variables. When the vulnerable function attempts to return or process the corrupted stack frame, the integrity of the execution flow is compromised, leading to an immediate exception and a crash of the camera driver process.\nThe attack flow follows a sequential pattern: 1) Identification of the camera driver interface exposure; 2) Crafting a malformed message containing payload data that exceeds the size constraints defined in the driver's message parsing logic; 3) Delivery of the payload via the appropriate inter-process communication (IPC) or driver interface channel; 4) Triggering the vulnerable memory copy operation; 5) Subsequent memory corruption and driver crash.\nWhile the primary impact documented is a denial of service, stack-based overflows generally carry the theoretical risk of arbitrary code execution if an attacker can precisely control the data that overwrites the function return address on the stack. However, in the absence of specific bypass techniques for modern exploit mitigations like stack canaries or address space layout randomization (ASLR), the most immediate and observable outcome is a system crash.\nThe vulnerability affects the core camera driver component shared across these specific Exynos processor iterations, indicating a systemic flaw in the driver's message handling architecture rather than a localized implementation error."
}