#VU112044 Integer overflow in MIB3 - CVE-2023-28909

Vulnerability identifier: #VU112044

Vulnerability risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28909

CWE-ID: CWE-190

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
MIB3
Other software / Other software solutions

Vendor: Volkswagen

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the Bluetooth stack when receiving fragmented HCI packets on a channel. A remote attacker on the local network can pass specially crafted data to the application, trigger integer overflow, bypass the MTU check and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MIB3: All versions

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External links
https://asrg.io/security-advisories/vulnerabilities-in-volkswagen-mib3-infotainment-part-2/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.