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)
112 lines
4 KiB
Text
112 lines
4 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
|
|
|
|
=============================================================================
|
|
FreeBSD-SA-02:15 Security Advisory
|
|
FreeBSD, Inc.
|
|
|
|
Topic: cyrus-sasl library contains format string vulnerability
|
|
|
|
Category: ports
|
|
Module: cyrus-sasl
|
|
Announced: 2002-03-12
|
|
Credits: Kari Hurtta <hurtta+zz@leija.mh.fmi.fi>
|
|
Affects: cyrus-sasl port prior to cyrus-sasl-1.5.24_8
|
|
Corrected: 2001-12-09 03:07:36 UTC
|
|
FreeBSD only: NO
|
|
CVE: CAN-2001-0869
|
|
|
|
I. Background
|
|
|
|
Cyrus-SASL is an implementation of RFC 2222 SASL (Simple
|
|
Authentication and Security Layer), a method for adding authentication
|
|
support to connection based protocols.
|
|
|
|
II. Problem Description
|
|
|
|
Affected versions of the cyrus-sasl port contain a format string
|
|
vulnerability. The format string vulnerability occurs during a call
|
|
to the syslog(3) function.
|
|
|
|
The cyrus-sasl port is not installed by default, nor is it "part of
|
|
FreeBSD" as such: it is part of the FreeBSD ports collection, which
|
|
contains thousands of third-party applications in a ready-to-install
|
|
format. The ports collection shipped with FreeBSD 4.4 is vulnerable
|
|
to this problem since it was discovered after its release.
|
|
|
|
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.
|
|
|
|
III. Impact
|
|
|
|
Malicious remote users may cause an application using cyrus-sasl to
|
|
execute arbitrary code with the privileges of the process using the
|
|
cyrus-sasl library. However, there are no known exploits at this
|
|
writing, and the author of cyrus-sasl does not believe that this bug
|
|
is exploitable. See the `References' section for more information.
|
|
|
|
If the cyrus-sasl port is not installed, then your system is not
|
|
vulnerable to this problem. The following command can be used to
|
|
determine whether or not the cyrus-sasl port is installed:
|
|
|
|
# pkg_info -I cyrus-sasl-\*
|
|
|
|
IV. Workaround
|
|
|
|
Deinstall the cyrus-sasl port if you have installed it.
|
|
|
|
V. Solution
|
|
|
|
Do one of the following:
|
|
|
|
1) Upgrade your entire ports collection and rebuild the port.
|
|
|
|
2) Deinstall the old port and install a corrected version from the
|
|
following directories.
|
|
|
|
[i386]
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/security/
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/security/
|
|
|
|
[alpha]
|
|
Packages are not automatically generated for the alpha architecture at
|
|
this time due to lack of build resources.
|
|
|
|
3) Download a new port skeleton for cyrus-sasl 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-4-stable/Latest/portcheckout.tgz
|
|
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/Latest/portcheckout.tgz
|
|
|
|
VI. Correction details
|
|
|
|
The following list contains the revision numbers of each file that was
|
|
corrected in the FreeBSD ports collection.
|
|
|
|
Path Revision
|
|
- -------------------------------------------------------------------------
|
|
ports/security/cyrus-sasl/Makefile 1.30
|
|
ports/security/cyrus-sasl/files/patch-lib::common.c 1.1
|
|
- -------------------------------------------------------------------------
|
|
|
|
VII. References
|
|
|
|
<URL:http://www.securityfocus.com/archive/1/224148>
|
|
<URL:http://www.iss.net/security_center/static/7443.php>
|
|
-----BEGIN PGP SIGNATURE-----
|
|
Version: GnuPG v1.0.6 (FreeBSD)
|
|
Comment: For info see http://www.gnupg.org
|
|
|
|
iQCVAwUBPI4Ox1UuHi5z0oilAQEqfAQAm21BK3iBrye7YKOpNIe4HhWyLx5YyPs+
|
|
AEASVCg9J4n3vp//nhaOlpC9vQgdoBSX/vRDx5GCS8fkkw/l0R/KmTit1Kezahht
|
|
ms4LbcSqjxKzscPBwT3ZJZt166z5JyUXkzVOsGbEG11WMgeH/jQ4oTG/Xk9cGWH9
|
|
r+BCSjm3phw=
|
|
=VRs8
|
|
-----END PGP SIGNATURE-----
|