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)
85 lines
2.9 KiB
Text
85 lines
2.9 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:12 Security Advisory
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FreeBSD, Inc.
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Topic: healthd allows a local root compromise
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Category: ports
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Module: healthd
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Announced: 2000-04-10
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Credits: Discovered during FreeBSD ports collection auditing.
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Affects: Ports collection before the correction date.
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Corrected: 2000-03-25
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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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healthd is a small utility for monitoring the temperature, fan speed
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and voltage levels of certain motherboards.
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II. Problem Description
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healthd v0.3 installs a utility which is setuid root in order to
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monitor the system status. This utility contains a trivial buffer
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overflow which allows an unprivileged local user to obtain root
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privileges on the system.
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The healthd 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 3200 third-party applications in a ready-to-install
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format. The ports collection shipped with FreeBSD 4.0 contains this
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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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A local user can obtain root privileges by exploiting a vulnerability
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in the healthd utility.
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If you have not chosen to install the healthd port/package, then your
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system is not vulnerable.
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IV. Workaround
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Remove the healthd port, if you you have installed it.
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V. Solution
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1) Upgrade your entire ports collection and rebuild the healthd port.
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2) Reinstall a new package dated after the correction date, obtained from:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/sysutils/healthd-0.3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/sysutils/healthd-0.3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-3-stable/sysutils/healthd-0.3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/sysutils/healthd-0.3.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/sysutils/healthd-0.3.tgz
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3) download a new port skeleton for the healthd 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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