3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
115 lines
4.3 KiB
Text
115 lines
4.3 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:78 Security Advisory
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FreeBSD, Inc.
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Topic: bitchx/ko-bitchx allows remote code execution [REVISED]
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Category: ports
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Module: bitchx/ko-bitchx
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Announced: 2000-12-20
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Reissued: 2000-12-29
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Credits: nimrood <nimrood@ONEBOX.COM>
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Affects: Ports collection prior to the correction date.
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Corrected: 2000-12-12
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Vendor status: Updated version released
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FreeBSD only: NO
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0. Revision History
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v1.0 2000-12-20 Initial release
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v1.1 2000-12-29 Noted the vulnerability of ko-bitchx also
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I. Background
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bitchx is a popular IRC client. It is available in a Korean-localized
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version as the ko-bitchx package.
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II. Problem Description
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The bitchx port, versions prior to 1.0c17_1, and ko-bitchx port,
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versions prior to 1.0c16_3, contains a remote vulnerability. Through
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a stack overflow in the DNS parsing code, a malicious remote user in
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control of their reverse DNS records may crash a bitchx session, or
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cause arbitrary code to be executed by the user running bitchx.
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The bitchx/ko-bitchx ports are not installed by default, nor are they
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"part of FreeBSD" as such: they are part of the FreeBSD ports
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collection, which contains over 4300 third-party applications in a
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ready-to-install format. The ports collections shipped with FreeBSD
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3.5.1 and 4.2 contain this problem since it was discovered after the
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releases.
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FreeBSD makes no claim about the security of these third-party
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applications, although an effort is underway to provide a security
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audit of the most security-critical ports.
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III. Impact
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Malicious remote users may execute arbitrary code as the user running
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bitchx.
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If you have not chosen to install the bitchx or ko-bitchx
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port/packages, then your system is not vulnerable to this problem.
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IV. Workaround
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Deinstall the bitchx and/or ko-bitchx port/packages, if you have
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installed them.
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V. Solution
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One of the following:
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1) Upgrade your entire ports collection and rebuild the bitchx or
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ko-bitchx ports.
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2) Deinstall the old package and install a new package dated after the
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correction date, obtained from:
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[bitchx]
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/irc/BitchX-1.0c17_1.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/irc/BitchX-1.0c17_1.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/irc/BitchX-1.0c17_1.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/irc/BitchX-1.0c17_1.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/irc/BitchX-1.0c17_1.tgz
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[ko-bitchx]
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/korean/ko-BitchX-1.0c16_3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/korean/ko-BitchX-1.0c16_3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/korean/ko-BitchX-1.0c16_3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/korean/ko-BitchX-1.0c16_3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/korean/ko-BitchX-1.0c16_3.tgz
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NOTE: It may be several days before updated ko-bitchx packages are
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available.
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3) download a new port skeleton for the bitchx/ko-bitchx port from:
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http://www.freebsd.org/ports/
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and use it to rebuild the port.
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4) Use the portcheckout utility to automate option (3) above. The
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portcheckout port is available in /usr/ports/devel/portcheckout or the
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package can be obtained from:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz
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-----BEGIN PGP SIGNATURE-----
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Version: GnuPG v1.0.4 (FreeBSD)
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Comment: For info see http://www.gnupg.org
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