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title: "FreeBSD 4.3 Errata Notes"
sidenav: download
---

include::shared/en/urls.adoc[]

= FreeBSD 4.3 Errata Notes

....
If you read no other documentation before installing this
version of FreeBSD, you should at least by all means *READ
THE ERRATA* for this release so that you don't stumble over
problems which have already been found and fixed.  This ERRATA.TXT
file is obviously already out of date by definition, but other
copies are kept updated on the net and should be consulted as
the "current errata" for your release.  These other copies of
the errata are located at:

  1. http://www.FreeBSD.org/releases/

  2. ftp://ftp.FreeBSD.org/pub/FreeBSD/releases/<your-release>/ERRATA.TXT
     (and any sites which keep up-to-date mirrors of this location).

Any changes to this file are also automatically emailed to:

    freebsd-current@FreeBSD.org

For all FreeBSD security advisories, see:

    http://www.FreeBSD.org/security/

for the latest security incident information.

---- Security Advisories:

The vulnerability documented in security advisory FreeBSD-SA-01:39 was
fixed in FreeBSD 4.3-RELEASE.  The release notes mentioned the fix,
but made no mention of the security advisory.

A vulnerability in the fts(3) routines (used by applications for
recursively traversing a filesystem) could allow a program to operate
on files outside the intended directory hierarchy.  This bug, as well
as a fix, is described in security advisory FreeBSD-SA-01:40.

A flaw allowed some signal handlers to remain in effect in a child
process after being exec-ed from its parent.  This allowed an attacker
to execute arbitrary code in the context of a setuid binary.  More
details, as well as a fix, are described in security advisory
FreeBSD-SA-01:42.

A remote buffer overflow in tcpdump(1) could be triggered by sending
certain packets at a target machine.  More details, as well as a fix,
can be found in security advisory FreeBSD-SA-01:48.

A remote buffer overflow in telnetd(8) could result in arbitrary code
running on a target machine.  More details, as well as a fix, can be
found in security advisory FreeBSD-SA-01:49.

A vulnerability whereby a remote attacker could exhaust a target's
pool of network buffers has been closed.  More details, as well as a
fix, can be found in security advisory FreeBSD-SA-01:52.

A flaw existed in ipfw(8), in which ``me'' filter rules would match
the remote IP address of a point-to-point interface in addition to the
intended local IP address.  More details, as well as a fix, can be
found in security advisory FreeBSD-SA-01:53.

A vulnerability in procfs(5) could allow a process to read sensitive
information from another process's memory space.  For more details, as
well as information on patches, see security advisory
FreeBSD-SA-01:55.

PARANOID hostname checking in tcp_wrappers did not work correctly.
For more details and information on patches, see security advisory
FreeBSD-SA-01:56.

sendmail(8) has a local root vulnerability.  For more details and
patch information, see security advisory FreeBSD-SA-01:57.

lpd(8) contained a remotely-exploitable buffer overflow.  For more
details, and a fix for this problem, see security advisory
FreeBSD-SA-01:58.

rmuser(8) had a race condition that briefly exposed a world-readable
/etc/master.passwd.  For more details, as well as workarounds and
solutions, see security advisory FreeBSD-SA-01:59.

---- System Update Information:

The release note entry for the ESS Maestro-3/Allegro sound driver gave
an incorrect command for loading the driver via /boot/loader.conf.
The correct command is:

    snd_maestro3_load="YES"

ssh(1) is no longer SUID root.  The primary manifestation of this
change is that .shosts authentication may not work "out of the box".
Both temporary and permanent fixes are described in the FAQ at:

    link:{faq}#SSH-SHOSTS[http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/faq/admin.html#SSH-SHOSTS]
....

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