Subject: [mark@pine.nl: Remote buffer overflow in resolver code of libc]
To: None <tech-security@netbsd.org>
From: Lubomir Sedlacik <salo@Xtrmntr.org>
List: tech-security
Date: 06/27/2002 01:40:12
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any closer info?  will there be official advisory released?

thanks,

----- Forwarded message from Mark Lastdrager <mark@pine.nl> -----

Date: Wed, 26 Jun 2002 09:37:16 +0200
From: Mark Lastdrager <mark@pine.nl>
To: bugtraq@securityfocus.com
Cc: vulnwatch@vulnwatch.org, vuln-dev@securityfocus.com,
	editors@daemonnews.org
Subject: Remote buffer overflow in resolver code of libc

Please find advisory attached.

Mark Lastdrager

--
Pine Internet BV ::  tel. +31-70-3111010 ::  fax. +31-70-3111011
PGP 0xFF0EA728 fpr 57D2 CD16 5908 A8F0 9F33 AAA3 AFA0 24EF FF0E A728
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 --------------------------------------------------------------------------=
---
 Pine Internet Security Advisory
 --------------------------------------------------------------------------=
---
 Advisory ID       : PINE-CERT-20020601=20
 Authors           : Joost Pol <joost@pine.nl>
 Issue date        : 2002-06-25=20
 Application       : Multiple
 Version(s)        : Multiple=20
 Platforms         : FreeBSD, OpenBSD, NetBSD, maybe more.=20
 Availability      : http://www.pine.nl/advisories/pine-cert-20020601.txt
 --------------------------------------------------------------------------=
---

Synopsis

	There is a remote buffer overflow in the resolver code of libc.

Impact

	Serious.

	Exploitability will vary on application-specific issues.

Description

	There is a slight mistake in the resolver code of libc.

	This will allow an attacker-controlled DNS server to reply
	with a carefully crafted message to (for example) a
	gethostbyname request.
=09
	This reply will trigger the buffer overflow

Solution

	FreeBSD, NetBSD and OpenBSD CVS have been updated.
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