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Date:      Tue, 23 Apr 2002 16:51:17 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Mike Barcroft <mike@FreeBSD.org>
Cc:        Garrett Wollman <wollman@lcs.mit.edu>, "M. Warner Losh" <imp@village.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/kern kern_descrip.c kern_exec.c src/sys/sys filedesc.h 
Message-ID:  <84334.1019573477@critter.freebsd.dk>
In-Reply-To: Your message of "Tue, 23 Apr 2002 10:47:22 EDT." <20020423104722.D72727@espresso.q9media.com> 

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In message <20020423104722.D72727@espresso.q9media.com>, Mike Barcroft writes:

>Doing the base system will be far easier than say changing all
>function declarations from K&R to ANSI C.  The 6 line check could
>easily be added to a common libc function, and one line function call
>added to the main() of every set[ug]id program.  I'm willing to do
>develop a patchset over the weekend.

By all means.

>As far as ports go, every port that relies on the standard file
>descriptors being open and doesn't check for them, is vulnerable to
>this exploit on almost every UNIX-like system including most versions
>of FreeBSD.  Security advisories should be released for those ports
>and fixes coordinated with the vendors.

In the meantime the kernel protects users from these.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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