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linux-ftpd-ssl: Remote buffer overflow


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200511-11 / linux-ftpd-ssl
Release Date November 13, 2005
Latest Revision December 30, 2007: 02
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-ftp/netkit-ftpd < 0.17-r3 >= 0.17-r3 All supported architectures

Related bugreports: #111573


A buffer overflow vulnerability has been found, allowing a remote attacker to execute arbitrary code with escalated privileges on the local system.

2.  Impact Information


linux-ftpd-ssl is the netkit FTP server with encryption support.


A buffer overflow vulnerability has been found in the linux-ftpd-ssl package. A command that generates an excessively long response from the server may overrun a stack buffer.


An attacker that has permission to create directories that are accessible via the FTP server could exploit this vulnerability. Successful exploitation would execute arbitrary code on the local machine with root privileges.

3.  Resolution Information


There is no known workaround at this time.


All ftpd users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/netkit-ftpd-0.17-r3"

4.  References


Page updated November 13, 2005

Summary: This is a Gentoo Linux Security Advisory

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