Security Advisory

CVE-2020-5204

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2020-01-06 19:10:12

Last updated 2024-08-04 08:22:08

Assigner GitHub_M

State PUBLISHED

Description

In uftpd before 2.11, there is a buffer overflow vulnerability in handle_PORT in ftpcmd.c that is caused by a buffer that is 16 bytes large being filled via sprintf() with user input based on the format specifier string %d.%d.%d.%d. The 16 byte size is correct for valid IPv4 addresses (len('255.255.255.255') == 16), but the format specifier %d allows more than 3 digits. This has been fixed in version 2.11

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