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Re: [BL4CK] - BL4CK FR1D4Y 2006-07-21
From: Valdis.Kletnieks () vt edu
Date: Fri, 21 Jul 2006 23:47:55 -0400

On Fri, 21 Jul 2006 17:13:43 CDT, redsand said:
                Welcome to the zer0-day haulocaust.

-=[ Sendmail 8.13.5 and below Remote Signal Handling exploit
Proof of Concept for the remote signal handling vulnerability
                by redsand

From the Sendmail release notes:

8.13.6/8.13.6   2006/03/22
        SECURITY: Replace unsafe use of setjmp(3)/longjmp(3) in the server
                and client side of sendmail with timeouts in the libsm I/O
                layer and fix problems in that code.  Also fix handling of
                a buffer in sm_syslog() which could have been used as an
                attack vector to exploit the unsafe handling of
                setjmp(3)/longjmp(3) in combination with signals.
                Problem detected by Mark Dowd of ISS X-Force.

It's not much of a zero day when the fix shipped 4 months ago, now is it?

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