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Category:   Application (E-mail Server)  >   Sendmail Vendors:   Sendmail Consortium
(OpenBSD Issues Fix) Sendmail May Crash When Processing Mail with a Long Header
SecurityTracker Alert ID:  1016754
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Aug 25 2006
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.13.7 and prior versions
Description:   A vulnerability was reported in Sendmail. A remote user can cause denial of service conditions.

A remote user can send e-mail with specially crafted (and very long) header lines to trigger a "use-after-free" flaw and cause the target sendmail service to crash.

Moritz Jodeit reported this vulnerability.

[Editor's note: The vendor reported on August 9, 2006 that a potential "crash" had been corrected, but the vendor did not describe the nature of the crash. OpenBSD reported the security relevant nature of the crash on August 25, 2006.]

Impact:   A remote user can cause sendmail to crash.
Solution:   OpenBSD has issued the following fixes:

Vendor URL: (Links to External Site)
Cause:   State error
Underlying OS:  UNIX (OpenBSD)
Underlying OS Comments:  3.8, 3.9

Message History:   This archive entry is a follow-up to the message listed below.
Aug 25 2006 Sendmail May Crash When Processing Mail with a Long Header

 Source Message Contents

[Original Message Not Available for Viewing]

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