ProFTPD off-by-one _xlate_ascii_write function buffer overflow
| proftpd-offbyone-bo (15387) |  High Risk |
Description:
ProFTPD is vulnerable to a buffer overflow, caused by off-by-one errors in the _xlate_ascii_write function. By issuing a specially-crafted RETR command containing 1023 bytes or more that begins with a LF (Line Feed) character, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of ProFTPD.
Platforms Affected:
- ProFTPD, ProFTPD 1.2.7
- ProFTPD, ProFTPD 1.2.8
- ProFTPD, ProFTPD 1.2.9rc1
- ProFTPD, ProFTPD 1.2.9rc2
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 7 Workstation
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux 8 Workstation
- Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
Remedy:
Upgrade to the latest version of ProFTPD (1.2.9rc3 or later), available from the ProFTPD Web site. See References.
Consequences:
Gain Access
References:
- ProFTPD Web site, The ProFTPD Project: Downloading and mirror sites at http://www.proftpd.org/download.html.
- BID-9782: ProFTPD _xlate_ascii_write() Buffer Overrun Vulnerability
- CVE-2004-0346: Off-by-one buffer overflow in _xlate_ascii_write() in ProFTPD 1.2.7 through 1.2.9rc2p allows local users to gain privileges via a 1024 byte RETR command.
Reported:
Mar 04, 2004
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