realpath(3) function contains off-by-one buffer overflow

Overview A function originally derived from 4.4BSD, realpath3, contains a vulnerability that may permit a malicious user to gain root access to the server. This function was derived from the FreeBSD 3.x tree. Other applications and operating systems that use or were derived from this code base ma...

libc.nul.byte.txt

Date: Wed, 14 Oct 1998 11:42:46 +0200 From: Olaf Kirch To: [email protected] Subject: The poisoned NUL byte Summary: you can exploit a single-byte buffer overrun to gain root privs. When, half a day after releasing version 2.2beta37 of the Linux nfs server, I received a message from Larry...

WU-FTPD 2.4.2 SCO Open Server 5.0.5 ProFTPd 1.2 pre1 - realpath Remote Buffer Overflow (1)

WU-FTPD 2.4.2 SCO Open Server 5.0.5 ProFTPd 1.2 pre1 - realpath Remote Buffer Overflow 1 / source: https://www.securityfocus.com/bid/113/info There is a vulnerability in ProFTPD versions 1.2.0pre1 and earlier and in wu-ftpd 2.4.2 beta 18 VR9 and earlier. This vulnerability is a buffer overflow...

WU-FTPD 2.4.2 SCO Open Server 5.0.5 ProFTPd 1.2 pre1 - realpath Remote Buffer Overflow (2)

WU-FTPD 2.4.2 SCO Open Server 5.0.5 ProFTPd 1.2 pre1 - realpath Remote Buffer Overflow 2 / source: https://www.securityfocus.com/bid/113/info There is a vulnerability in ProFTPD versions 1.2.0pre1 and earlier and in wu-ftpd 2.4.2 beta 18 VR9 and earlier. This vulnerability is a buffer overflow...

WU-FTPD 2.4.2 / SCO Open Server 5.0.5 / ProFTPd 1.2 pre1 - 'realpath' Remote Buffer Overflow (2)

/ source: https://www.securityfocus.com/bid/113/info There is a vulnerability in ProFTPD versions 1.2.0pre1 and earlier and in wu-ftpd 2.4.2 beta 18 VR9 and earlier. This vulnerability is a buffer overflow triggered by unusually long path names directory structures. For example, if a user has wri...