This vulnerability was submitted to BugTraq on October 18th, 2001 in a Debian Security Advisory.
Vulnerable:
gFTP gFTP 2.0.6 a
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Debian Linux 2.2 sparc
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Debian Linux 2.2 powerpc
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Debian Linux 2.2 arm
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Debian Linux 2.2 alpha
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Debian Linux 2.2 68k
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Debian Linux 2.2