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Category:   Application (E-mail Server)  >   sSMTP Vendors:   Collier-Brown, David et al
sSMTP Format String Flaws Let Remote Servers Execute Arbitrary Code
SecurityTracker Alert ID:  1009788
SecurityTracker URL:  http://securitytracker.com/id/1009788
CVE Reference:   CVE-2004-0156   (Links to External Site)
Date:  Apr 15 2004
Impact:   Execution of arbitrary code via network, Root access via network, User access via network

Version(s): prior to 2.50.6.1
Description:   Two format string vulnerabilities were reported in ssmtp. A remote mail relay may be able to execute arbitrary code with the privileges of the ssmtp process.

Debian reported that the software passes user-supplied values as format strings to the die() and log_event() functions. A remote user (as a mail relay) can supply specially crafted values to execute arbitrary code on the target system.

Max Vozeler is credited with discovering these flaws.

Impact:   A remote server can execute arbitrary code on the target system with the privileges of the ssmtp process, which may be root level privileges on some systems.
Solution:   No upstream solution was available at the time of this entry.
Cause:   Input validation error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Apr 15 2004 (Debian Issues Fix) sSMTP Format String Flaws Let Remote Servers Execute Arbitrary Code
Debian has released a fix.



 Source Message Contents

Subject:  CVE-2004-0156


Debian reported two format string vulnerabilities in ssmtp.  A remote user (mail relay) 
may be able to execute arbitrary code with the privileges of the ssmtp process.

The software reportedly passes user-supplied values as format strings to the die() and 
log_event() functions.

Max Vozeler is credited with discovering these flaws.

 
 


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