Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

BID:13133

Info

Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

Bugtraq ID: 13133
Class: Input Validation Error
CVE: CVE-2005-1100
Remote: Yes
Local: No
Published: Apr 12 2005 12:00AM
Updated: Jul 12 2009 12:56PM
Credit: "dong-hun you" <[email protected]> disclosed this vulnerability.
Vulnerable: Salim Gasmi GLD 1.4
+ Gentoo Linux
Salim Gasmi GLD 1.3.1
Salim Gasmi GLD 1.3
Salim Gasmi GLD 1.2
Salim Gasmi GLD 1.1
Salim Gasmi GLD 1.0
Not Vulnerable: Salim Gasmi GLD 1.5
+ Gentoo Linux

Discussion

Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

It is reported that GLD contains a format string vulnerability. This issue is due to a failure of the application to properly sanitize user-supplied input data prior to using it in a formatted-printing function.

Remote attackers may exploit this vulnerability to cause arbitrary machine code to be executed in the context of the affected service. As the service is designed to be run as the superuser, remote attackers may gain superuser privileges on affected computers.

GLD version 1.4 is reportedly affected, but prior versions may also be affected.

Exploit / POC

Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

A proof of concept exploit was provided by "you dong-hun"(Xpl017Elz) &lt;[email protected]&gt;:

Solution / Fix

Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

Solution:
Gentoo Linux has released advisory GLSA 200504-10 dealing with this and other issues. Gentoo advises that all users update their packages by carrying out the following commands with superuser privileges:

emerge --sync
emerge --ask --oneshot --verbose ">=mail-filter/gld-1.5"

For more information, please see the referenced Gentoo Linux advisory.

The vendor, Salim Gasmi, has released an upgrade resolving these issues.


Salim Gasmi GLD 1.0

Salim Gasmi GLD 1.1

Salim Gasmi GLD 1.2

Salim Gasmi GLD 1.3

Salim Gasmi GLD 1.3.1

Salim Gasmi GLD 1.4

References

Salim Gasmi GLD Postfix Greylisting Daemon Format String Vulnerability

References:
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