Advisory Details

December 20th, 2023

oFono SMS Decoder Stack-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2023-4233
CVSS SCORE	8.1, AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	oFono
AFFECTED PRODUCTS	oFono
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of oFono. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of SMS PDUs. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.
ADDITIONAL DETAILS	oFono has issued an update to correct this vulnerability. More details can be found at: https://bugzilla.redhat.com/show_bug.cgi?id=2255396
DISCLOSURE TIMELINE	2023-05-10 - Vulnerability reported to vendor 2023-12-20 - Coordinated public release of advisory
CREDIT	Mitch Zakocs @ ASU SEFCOM Lab

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