Ofono: sms decoder stack-based buffer overflow remote code execution vulnerability within the decode_deliver() function
Priority HIGH 70CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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().
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0125 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed ofono: 2.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ofono | — | 2.5 | Patch available | CNA |
- ofono Vendor— Affected — Fixed in 2.5 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ofono_project:ofono:*:*:*:*:*:*:*:* | before 2.5 | Vulnerable | oFono |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* | 40 | Vulnerable | Fedoraproject |
- cpe:2.3:a:ofono_project:ofono:*:*:*:*:*:*:*:* Versions before 2.5 Vulnerable ·oFono
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA ofono Fixed in 2.5
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-2794
- 2026-10-03 Alias added: GHSA-qcrm-33g9-cjcc
References
Exploit 1
Sources
- CVE-2023-2794 · CVE Program
- CVE-2023-2794 · NVD
- FIRST EPSS
- GHSA-qcrm-33g9-cjcc · GitHub Advisory Database · CC BY 4.0
- CVE-2023-2794 · Red Hat security data · CC BY 4.0
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