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OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
openpkg-security@openpkg.org openpkg@openpkg.org
OpenPKG-SA-2004.009 05-Apr-2004
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Package: mc
Vulnerability: arbitrary code execution
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= mc-4.6.0-20040207>= mc-4.6.0-20040405
OpenPKG 2.0 <= mc-4.6.0-2.0.0>= mc-4.6.0-2.0.1
OpenPKG 1.3 <= mc-4.6.0-1.3.0>= mc-4.6.0-1.3.1
Dependent Packages: none
Description:
According to a message from Ilya Teterin posted on Bugtraq [0], the
Midnight Commander application [1] uses a uninitialized buffer to
handle symlinks in VFS. This allows attackers to execute arbitrary
code during symlink conversion. The Common Vulnerabilities and
Exposures (CVE) project assigned the id CAN-2003-1023 [2] to the
problem.
Please check whether you are affected by running "/bin/rpm
-q mc". If you have the "mc" package installed and its version is
affected (see above), we recommend that you immediately upgrade it
(see Solution). [3][4]
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[5][6], fetch it from the OpenPKG FTP service [7][8] or a mirror
location, verify its integrity [9], build a corresponding binary RPM
from it [3] and update your OpenPKG installation by applying the
binary RPM [4]. For the most recent release OpenPKG 2.0, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.0/UPD
ftp> get mc-4.6.0-2.0.1.src.rpm
ftp> bye
$ /bin/openpkg rpm -v --checksig mc-4.6.0-2.0.1.src.rpm
$ /bin/openpkg rpm --rebuild mc-4.6.0-2.0.1.src.rpm
$ su -
# /bin/openpkg rpm -Fvh /RPM/PKG/mc-4.6.0-2.0.1.*.rpm
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References:
[0] http://marc.theaimsgroup.com/?l=bugtraq&m=106399528518704
[1] http://www.ibiblio.org/mc/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-1023
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/1.3/UPD/mc-4.6.0-1.3.1.src.rpm
[6] ftp://ftp.openpkg.org/release/2.0/UPD/mc-4.6.0-2.0.1.src.rpm
[7] ftp://ftp.openpkg.org/release/1.3/UPD/
[8] ftp://ftp.openpkg.org/release/2.0/UPD/
[9] http://www.openpkg.org/security.html#signature
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG " (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
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