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)
94 lines
3.5 KiB
Text
94 lines
3.5 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:56 Security Advisory
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FreeBSD, Inc.
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Topic: LPRng contains potential root compromise
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Category: ports
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Module: LPRng
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Announced: 2000-10-13
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Credits: Chris Evans <chris@SCARY.BEASTS.ORG>
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Affects: Ports collection prior to the correction date.
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Corrected: 2000-10-13
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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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LPRng is a popular printer daemon.
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II. Problem Description
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The LPRng port, versions prior to 3.6.24, contains a potential
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vulnerability which may allow root compromise from both local and
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remote systems. The vulnerability is due to incorrect usage of the
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syslog(3) function. Local and remote users can send string-formatting
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operators to the printer daemon to corrupt the daemon's execution,
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potentially gaining root access.
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The LPRng 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 nearly 4000 third-party applications in a ready-to-install
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format. The ports collections shipped with FreeBSD 3.5.1, 4.1 and
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4.1.1 contain 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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Local and remote users may potentially gain root privileges on systems
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using LPRng.
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If you have not chosen to install the LPRng 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 LPRng port/package, if you 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 LPRng 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/sysutils/LPRng-3.6.25.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/sysutils/LPRng-3.6.25.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/sysutils/LPRng-3.6.25.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/sysutils/LPRng-3.6.25.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/sysutils/LPRng-3.6.25.tgz
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NOTE: It may be several days before updated packages are available.
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3) download a new port skeleton for the cvsweb 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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