libplctag up to 2.6.3 session.c unpack_response out-of-bounds

Summaryinfo

A vulnerability labeled as problematic has been found in libplctag up to 2.6.3. The impacted element is the function unpack_response of the file session.c. Such manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2025-1399. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in libplctag up to 2.6.3 and classified as problematic. Affected by this issue is the function unpack_response of the file session.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:

Out-of-bounds Read vulnerability in unpack_response (session.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

The weakness was presented by Gabriele Quagliarella. The advisory is shared for download at nozominetworks.com. This vulnerability is handled as CVE-2025-1399 since 02/17/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

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

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Productinfo

Name

• libplctag

Version

• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3

CPE 2.3info

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CPE 2.2info

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