Summaryinfo

A vulnerability was found in ticalc Texas Instrument Emulator 3.03 and classified as critical. This affects an unknown part of the component Command-Line Interface. Such manipulation of the argument ROM leads to path traversal. This vulnerability is uniquely identified as CVE-2016-20040. Local access is required to approach this attack. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in ticalc Texas Instrument Emulator 3.03 and classified as critical. Affected by this issue is an unknown code of the component Command-Line Interface. The manipulation of the argument ROM with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

TiEmu 3.03-nogdb+dfsg-3 contains a buffer overflow vulnerability in the ROM parameter handling that allows local attackers to crash the application or execute arbitrary code. Attackers can supply an oversized ROM parameter to the tiemu command-line interface to overflow the stack buffer and overwrite the instruction pointer with malicious addresses.

The advisory is shared for download at exploit-db.com. This vulnerability is handled as CVE-2016-20040 since 03/28/2026. The exploitation is known to be easy. The attack needs to be approached locally. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 304206 (Linux Distros Unpatched Vulnerability : CVE-2016-20040), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (39692), Tenable (304206) and EUVD (EUVD-2016-10835). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• ticalc

Name

• Texas Instrument Emulator

Version

• 3.03

CPE 2.3info

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CPE 2.2info

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