CVE-2023-28903
BaseFortify
Publication date: 2025-06-28
Last updated on: 2025-06-30
Assigner: Automotive Security Research Group (ASRG)
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2023-28903 is an integer overflow vulnerability in the image processing component of the MIB3 infotainment system used in certain Volkswagen and Ε koda vehicles. Specifically, it occurs during the calculation of EXIF tag data size in JPEG images, where 32-bit arithmetic is used incorrectly, allowing the sum of tag data size and offset to overflow. This overflow can lead to out-of-bounds memory access, causing memory leaks or segmentation faults that crash the infotainment system. [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting local access to the MIB3 infotainment system to prevent insertion of malicious USB devices with crafted JPEG images. Avoid opening untrusted images on the IVI system. Disable or limit Bluetooth pairing and connections to trusted devices only, as some vulnerabilities can be exploited via Bluetooth. Monitor for software updates or patches from Volkswagen addressing these vulnerabilities and apply them as soon as they become available (expected by August 2024). Until patches are applied, consider disabling USB media access or Bluetooth features if possible to reduce attack surface. [1]
How can this vulnerability impact me? :
This vulnerability can be exploited by an attacker with local access to the vehicle by inserting a USB flash drive containing a specially crafted JPEG image and opening it via the infotainment interface. Exploitation causes the infotainment system to crash and reboot, resulting in a denial-of-service (DoS) condition. This disrupts multimedia and navigation services, potentially affecting the usability and convenience of the vehicle's infotainment system. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of CVE-2023-28903 involves monitoring the MIB3 infotainment system for crashes or reboots triggered by processing crafted JPEG images with malformed EXIF data. Since exploitation requires local access and opening a malicious JPEG via the IVI interface (e.g., from a USB flash drive), detection can include checking for unexpected systemd service restarts or segfault logs related to the image processing binary. There are no specific network commands provided for detection, but monitoring USB device connections and logs for image processing failures is recommended. Additionally, monitoring Bluetooth activity for suspicious pairing attempts or malformed packets may help detect related attacks. Specific commands are not detailed in the resources. [1]