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)
105 lines
4 KiB
Text
105 lines
4 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
|
|
|
|
=============================================================================
|
|
FreeBSD-SA-00:59 Security Advisory
|
|
FreeBSD, Inc.
|
|
|
|
Topic: pine4 port contains remote vulnerability
|
|
|
|
Category: ports
|
|
Module: pine4/pine4-ssl/zh-pine4/iw-pine4
|
|
Announced: 2000-10-30
|
|
Affects: Ports collection.
|
|
Corrected: 2000-10-29
|
|
Credits: arkane@SPEAKEASY.ORG
|
|
Vendor status: Contacted
|
|
FreeBSD only: NO
|
|
|
|
I. Background
|
|
|
|
Pine is a popular mail user agent.
|
|
|
|
II. Problem Description
|
|
|
|
The pine4 port, versions 4.21 and before, contains a buffer overflow
|
|
vulnerability which allows a remote user to execute arbitrary code on
|
|
the local client by the sending of a special-crafted email
|
|
message. The overflow occurs during the periodic "new mail" checking
|
|
of an open folder.
|
|
|
|
The pine4 port is not installed by default, nor is it "part of
|
|
FreeBSD" as such: it is part of the FreeBSD ports collection, which
|
|
contains over 4000 third-party applications in a ready-to-install
|
|
format. The ports collections shipped with FreeBSD 4.1.1 and 3.5.1
|
|
contain this problem since it was discovered after the releases.
|
|
|
|
FreeBSD makes no claim about the security of these third-party
|
|
applications, although an effort is underway to provide a security
|
|
audit of the most security-critical ports.
|
|
|
|
Administrators should note that the Pine software has been a frequent
|
|
source of past security holes, and makes extensive use of string
|
|
routines commonly associated with security vulnerabilities. The
|
|
FreeBSD Security Officer believes it is likely that further
|
|
vulnerabilities exit in this software, and recommends the use of
|
|
alternative mail software in environments where electronic mail may be
|
|
received from untrusted sources.
|
|
|
|
III. Impact
|
|
|
|
Remote users can cause pine4 to crash when closing a mail folder by
|
|
sending a malformed email.
|
|
|
|
If you have not chosen to install the pine4 port/package, then
|
|
your system is not vulnerable to this problem.
|
|
|
|
IV. Workaround
|
|
|
|
Deinstall the pine4 port/package, if you have installed it.
|
|
|
|
The risk can be decreased by not leaving pine sitting idle with an
|
|
open folder, but it cannot be completely eliminated without patching
|
|
and recompiling the software.
|
|
|
|
V. Solution
|
|
|
|
One of the following:
|
|
|
|
1) Upgrade your entire ports collection and rebuild the pine4 port.
|
|
|
|
2) Deinstall the old package and install a new package dated after the
|
|
correction date, obtained from:
|
|
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/mail/pine-4.21_1.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/pine-4.21_1.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/mail/pine-4.21_1.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/pine-4.21_1.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/mail/pine-4.21_1.tgz
|
|
|
|
NOTE: It may be several days before updated packages are available.
|
|
|
|
3) download a new port skeleton for the listmanager port from:
|
|
|
|
http://www.freebsd.org/ports/
|
|
|
|
and use it to rebuild the port.
|
|
|
|
4) Use the portcheckout utility to automate option (3) above. The
|
|
portcheckout port is available in /usr/ports/devel/portcheckout or the
|
|
package can be obtained from:
|
|
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz
|
|
-----BEGIN PGP SIGNATURE-----
|
|
Version: GnuPG v1.0.4 (FreeBSD)
|
|
Comment: For info see http://www.gnupg.org
|
|
|
|
iQCVAwUBOf3+NVUuHi5z0oilAQHjFQQAmVrnuMQbQwPKf8LVdsNFgc6470e8Lz07
|
|
+8OTApKVTzX1WVbBNQUTJ8tC0TSiZt/BTOq41EVHc+yP6W8gJWPWmGJHMH2vtd2q
|
|
/5X1o+Q17IP2doXuDBT2MUJH7simUJBPbZ9Fi+AuI+lecCx80Q9W9qndEypdwpwZ
|
|
j01EAufwmMk=
|
|
=nefD
|
|
-----END PGP SIGNATURE-----
|