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)
100 lines
3.7 KiB
Text
100 lines
3.7 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-01:35 Security Advisory
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FreeBSD, Inc.
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Topic: licq contains multiple remote vulnerabilities
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Category: ports
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Module: licq
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Announced: 2001-04-23
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Credits: Stan Bubrouski <stan@ccs.neu.edu>
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Affects: Ports collection prior to the correction date.
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Corrected: 2001-03-13
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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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licq is an ICQ client.
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II. Problem Description
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The licq port, versions prior to 1.0.3, contains a vulnerability in
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URL parsing. URLs received by the licq program are passed to the
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web browser using the system() function. Since licq performs no
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sanity checking, a remote attacker may be able to pipe commands
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contained in the URL causing the client to execute arbitrary
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commands. Additionally, the licq program also contains a buffer
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overflow in the logging functions allowing a remote attacker to
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cause licq to crash and potentially execute arbitbrary code on the
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local machine as the user running licq.
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The licq port is not installed by default, nor is it "part of FreeBSD"
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as such: it is part of the FreeBSD ports collection, which contains
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over 5000 third-party applications in a ready-to-install format. The
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ports collections shipped with FreeBSD 3.5.1 and 4.2 contain this
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problem since it was discovered after the releases. The ports
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collection that shipped with FreeBSD 4.3 is not vulnerable since this
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problem was corrected prior to 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 attackers may be able to crash licq or execute arbitrary
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commands on the local machine as the user running the licq program.
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If you have not chosen to install the licq port/package, then your
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system is not vulnerable to this problem.
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IV. Workaround
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Deinstall the licq 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 licq 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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[i386]
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/net/licq-1.0.3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/net/licq-1.0.3.tgz
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[alpha]
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Packages are not automatically generated for the alpha architecture at
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this time due to lack of build resources.
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3) download a new port skeleton for the licq 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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