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)
92 lines
3.5 KiB
Text
92 lines
3.5 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:81 Security Advisory
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FreeBSD, Inc.
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Topic: ethereal allows remote code execution
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Category: ports
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Module: ethereal
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Announced: 2000-12-20
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Credits: mat@hacksware.com
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Affects: Ports collection prior to the correction date.
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Corrected: 2000-11-21
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Vendor status: Updated version released
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FreeBSD only: NO
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I. Background
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ethereal is a tool for monitoring network activity.
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II. Problem Description
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The ethereal port, versions prior to 0.8.14, contains buffer overflows
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which allow a remote attacker to crash ethereal or execute arbitrary
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code on the local system as the user running ethereal, typically the
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root user. These vulnerabilities are identical to those described in
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advisory 00:61 relating to tcpdump.
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The ethereal 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 4200 third-party applications in a ready-to-install
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format. The ports collections shipped with FreeBSD 3.5.1 and 4.2 are
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vulnerable to this problem since it was discovered after the 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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Remote users can cause the local ethereal process to crash, or
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to execute arbitrary code as the user running ethereal (usually root).
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IV. Workaround
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Do not use vulnerable versions of ethereal in network environments
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which may contain packets from untrusted sources.
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Deinstall the ethereal port/package, if you have installed it.
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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 ethereal 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 the following directories:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/net/ethereal-0.8.14.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/net/ethereal-0.8.14.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/net/ethereal-0.8.14.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/net/ethereal-0.8.14.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/net/ethereal-0.8.14.tgz
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3) download a new port skeleton for the ethereal 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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