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)
93 lines
3.2 KiB
Text
93 lines
3.2 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:32 Security Advisory
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FreeBSD, Inc.
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Topic: bitchx port contains client-side vulnerability
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Category: ports
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Module: bitchx
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Announced: 2000-07-05
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Affects: Ports collection.
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Corrected: 2000-07-03
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Vendor status: Patch released
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FreeBSD only: NO
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I. Background
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BitchX is a popular IRC client.
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II. Problem Description
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The bitchx client incorrectly parses string-formatting operators
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included as part of channel invitation messages sent by remote IRC
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users. This can cause the local client to crash, and may possibly
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present the ability to execute arbitrary code as the local user.
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The bitchx port is not installed by default, nor is it "part of
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FreeBSD" as such: it is part of the FreeBSD ports collection, which
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contains over 3400 third-party applications in a ready-to-install
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format. The ports collections shipped with FreeBSD 4.0 and 3.5 contain
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this problem since it was discovered after the release.
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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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Remote IRC users can cause the local client to crash, and possibly
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execute code as the local user.
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If you have not chosen to install the bitchx port/package, then
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your system is not vulnerable to this problem.
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IV. Workaround
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Issue the following bitchx command (e.g. as part of a startup script):
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/ignore * invites
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which will disable processing of channel invitation messages.
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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 port.
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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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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/irc/bitchx-1.0c16.tar.gz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/irc/bitchx-1.0c16.tar.gz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/irc/bitchx-1.0c16.tar.gz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/irc/bitchx-1.0c16.tar.gz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/irc/bitchx-1.0c16.tar.gz
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NOTE: It may be several days before updated packages are available. Be
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sure to check the file creation date on the package, because the
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version number of the software has not changed.
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3) download a new port skeleton for the 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/packages/devel/portcheckout-1.0.tgz
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