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Date:      Thu, 17 Jan 2002 11:30:55 +0900 (JST)
From:      Koga Youichirou <y-koga@jp.FreeBSD.org>
To:        freebsd-security@FreeBSD.ORG
Subject:   at command heap corruption vuln.
Message-ID:  <20020117.113055.130199478.y-koga@jp.FreeBSD.org>

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Debian and SuSE announced that "at" command leads into
a heap corruption. Does anyone know if this problem affects FreeBSD?

Debian: http://www.debian.org/security/2002/dsa-102
SuSE:	http://www.linuxsecurity.com/advisories/suse_advisory-1817.html

Debian's patch:
http://security.debian.org/dists/stable/updates/main/source/at_3.1.8-10.1.diff.gz

Debian's at seems to be same origin with FreeBSD, and free() part
in this patch (about check_for_user()) is identical with FreeBSD.

-- Koga, Youichirou

PS
There are other problems, I think creat() and open() in at.c should be
exclusive.

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