vsftpd '__tzfile_read()' Function Heap Based Buffer Overflow Vulnerability

Summary
vsftpd is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user- supplied data. Attackers may leverage this issue to execute arbitrary code in the context of the application. Failed attacks will cause denial-of- service conditions. vsftpd 2.3.4 is affected other versions may also be vulnerable.
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