CVE-2023-4233: Ofono: sms decoder stack-based buffer overflow remote code execution vulnerability within the sms_decode_address_field() function

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-17 · updated 2026-06-17
Weakness: CWE-119

Description

A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the sms_decode_address_field() function during the SMS PDU decoding. It is assumed that the attack scenario is accessible from a compromised modem, a malicious base station, or just SMS.

Affected products

Fedoraproject Fedora: 38, 39, 40
oFono: before 2.1 — fixed in 2.1

How to fix

Upgrade to a fixed version: oFono 2.1. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2255396
https://bugzilla.redhat.com/show_bug.cgi?id=2255396
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NBTPKR3LYTTLROPXF77FL4SPLXVHNC4T/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VG6FHQITWUNHBDGPXUQ77SZK5O5BYIBZ/

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