Novell · Novell Netmail · CVE-2006-5478
**Name of the Vulnerable Software and Affected Versions**
Novell eDirectory versions 8.8.x before 8.8.1 FTF1
Novell eDirectory versions 8.x up to 8.7.3.8
Novell NetMail versions before 3.52e FTF2
**Description**
The issue allows remote attackers to execute arbitrary code via multiple stack-based buffer overflows. This can be triggered by a long HTTP Host header, which causes an overflow in the `BuildRedirectURL` function. Other vectors include a username containing a `.` (dot) character in various services such as SMTP, POP, IMAP, HTTP, or Networked Messaging Application Protocol (NMAP) Netmail services.
**Recommendations**
For Novell eDirectory versions 8.8.x before 8.8.1 FTF1, update to version 8.8.1 FTF1 or later.
For Novell eDirectory versions 8.x up to 8.7.3.8, update to a version later than 8.7.3.8.
For Novell NetMail versions before 3.52e FTF2, update to version 3.52e FTF2 or later.
As a temporary workaround, consider restricting access to the `BuildRedirectURL` function and limiting the use of usernames containing a `.` (dot) character in the affected services until a patch is available.