Summaryinfo

A vulnerability, which was classified as critical, has been found in virtualsquare picoTCP and picoTCP-NG. Affected by this issue is the function pico_fragments_reassemble of the file modules/pico_fragments.c. The manipulation leads to double free. This vulnerability is handled as CVE-2021-33304. There is no exploit available. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability classified as critical was found in virtualsquare picoTCP and picoTCP-NG (affected version not known). Affected by this vulnerability is the function pico_fragments_reassemble of the file modules/pico_fragments.c. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in modules/pico_fragments.c in function pico_fragments_reassemble, allows attackers to execute arbitrary code.

The weakness was disclosed 02/16/2023. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-33304 since 05/20/2021. Technical details of the vulnerability are known, but there is no available exploit.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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Vendor

• virtualsquare

Name

• picoTCP
• picoTCP-NG

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