CVE-2023-4234: ofono Buffer Overflow — Exploit

Description

A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the decode_submit_report() function during the SMS decoding. It is assumed that the attack scenario is accessible from a compromised modem, a malicious base station, or just SMS. There is a bound check for this memcpy length in decode_submit(), but it was forgotten in decode_submit_report().

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-119 Buffer Overflow

Affected Products

Vendor	Product	Versions
ofono_project	ofono	< 2.1
fedoraproject	fedora	All
fedoraproject	fedora	All
fedoraproject	fedora	All

References

Exploits

https://bugzilla.redhat.com/show_bug.cgi?id=2255399 https://bugzilla.redhat.com/show_bug.cgi?id=2255399

Other References

https://lists.fedoraproject.org/archives/list/[email protected]/message/NBTPKR3LYTTLROPXF77FL4SPLXVHNC4T/ https://lists.fedoraproject.org/archives/list/[email protected]/message/VG6FHQITWUNHBDGPXUQ77SZK5O5BYIBZ/

Frequently Asked Questions

What is CVE-2023-4234? +

A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the decode_submit_report() function during the SMS decoding. It is assumed that the attack scenario is accessible from a compromised modem, a malicious base station, or just SMS. There is a bound check for this memcpy length in decode_submit(), but it was forgotten in decode_submit_report(). It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2023-4234? +

CVE-2023-4234 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-4234? +

CVE-2023-4234 affects products from fedoraproject, ofono_project, specifically: fedora, ofono. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-4234? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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