Stack Overflow Bug in ofono Leads to SMS Decoding Vulnerability
CVE-2023-4232

8.1HIGH

Key Information:

Vendor

Fedora

Status
Ofono
Fedora
Vendor
CVE Published:
17 April 2024

What is CVE-2023-4232?

A vulnerability has been identified in Ofono, the Open Source Telephony stack for Linux. This flaw arises from a stack overflow within the decode_status_report() function, which is triggered during SMS decoding processes. The vulnerability can be exploited via a compromised modem or through a malicious SMS sent from a base station. Although there is a bound check implemented in the decode_submit() function, this check is absent in decode_status_report(), making it susceptible to exploitation.

Affected Version(s)

ofono 2.1

References

https://bugzilla.redhat.com/show_bug.cgi?id=2255394
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Mitch Zakocs (Trend Micro Zero Day Initiative) for reporting this issue.
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