# CVE-2023-2794: ofono: A flaw was found in ofono, an Open Source Telephony on Linux

CVE-2023-2794 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2023-2794, released April 10, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-2794
- Priority: High
- CVSS: 8.1 (high)
- EPSS: 0.0125
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 10, 2024

## Description

A flaw was found in ofono, an Open Source Telephony on Linux. A stack overflow bug is triggered within the decode_deliver() 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_deliver().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ofono Debian 13.5 (trixie) | 1.31-4 | [DEBIAN-CVE-2023-2794](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2794.md) | Apr 10, 2024 |
| Linux | ofono Debian 14 | 1.31-4 | [DEBIAN-CVE-2023-2794](https://patchblox.com/security/data/fix/linux/debian-cve-2023-2794.md) | Apr 10, 2024 |
| Linux | ofono Ubuntu 18.04.6 LTS (bionic) | 1.21-1ubuntu1+esm1 | [ofono 1.21-1ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ofono-1.21-1ubuntu1-esm1.md) | Apr 17, 2024 |
| Linux | ofono Ubuntu 20.04 LTS (focal) | 1.31-2ubuntu1+esm1 | [ofono 1.31-2ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ofono-1.31-2ubuntu1-esm1.md) | Apr 17, 2024 |
| Linux | ofono Ubuntu 22.04.1 LTS (jammy) | 1.31-3ubuntu1.1 | [ofono 1.31-3ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ofono-1.31-3ubuntu1.1.md) | Apr 17, 2024 |
| Linux | ofono Ubuntu 24.04.5 LTS (noble) | 1.31-3ubuntu3.24.04.1 | [ofono 1.31-3ubuntu3.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ofono-1.31-3ubuntu3.24.04.1.md) | Apr 17, 2024 |
| Linux | ofono Ubuntu 24.10 (oracular) | 1.31-3ubuntu3.24.10.1 | [ofono 1.31-3ubuntu3.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-ofono-1.31-3ubuntu3.24.10.1.md) | Jan 16, 2026 |
| Linux | ofono opensuse-leap 16.0 | 2.19-bp160.1.1 | [OPENSUSE-SU-2026:21154-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21154-1.md) | Jun 23, 2026 |
| Linux | ofono-scripts Ubuntu 18.04.6 LTS (bionic) | 1.21-1ubuntu1+esm1 | [ofono-scripts 1.21-1ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ofono-scripts-1.21-1ubuntu1-esm1.md) | Apr 17, 2024 |
| Linux | ofono-scripts Ubuntu 20.04 LTS (focal) | 1.31-2ubuntu1+esm1 | [ofono-scripts 1.31-2ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ofono-scripts-1.31-2ubuntu1-esm1.md) | Apr 17, 2024 |
| Linux | ofono-scripts Ubuntu 22.04.1 LTS (jammy) | 1.31-3ubuntu1.1 | [ofono-scripts 1.31-3ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ofono-scripts-1.31-3ubuntu1.1.md) | Apr 17, 2024 |
| Linux | ofono-scripts Ubuntu 24.04.5 LTS (noble) | 1.31-3ubuntu3.24.04.1 | [ofono-scripts 1.31-3ubuntu3.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ofono-scripts-1.31-3ubuntu3.24.04.1.md) | Apr 17, 2024 |
| Linux | ofono-scripts Ubuntu 24.10 (oracular) | 1.31-3ubuntu3.24.10.1 | [ofono-scripts 1.31-3ubuntu3.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-ofono-scripts-1.31-3ubuntu3.24.10.1.md) | Jan 16, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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