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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-2003.052 17-Dec-2003
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Package: cvs
Vulnerability: filesystem intrusion
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= cvs-1.12.2-20031027>= cvs-1.12.3-20031205
OpenPKG 1.3 <= cvs-1.12.1-1.3.0>= cvs-1.12.1-1.3.1
OpenPKG 1.2 <= cvs-1.11.5-1.2.2>= cvs-1.11.5-1.2.3
Dependent Packages: none
Description:
According to a CVS [0] security update [1], a malformed module
request can cause the CVS server to attempt to create directories
and possibly files at the root of the filesystem holding the CVS
repository. Even though filesystem permissions usually prevent the
creation of these misplaced directories, the corrected OpenPKG
packages include a CVS server which rejects such malformed requests.
The Common Vulnerabilities and Exposures (CVE) project assigned the id
CAN-2003-0977 [2] to the problem.
Please check whether you are affected by running "/bin/rpm
-q cvs". If the "cvs" package is indeed installed and its version
is affected (see above), please upgrade it immediately according to
OpenPKG recommendations (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 current release OpenPKG 1.3, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/1.3/UPD
ftp> get cvs-1.12.1-1.3.1.src.rpm
ftp> bye
$ /bin/rpm -v --checksig cvs-1.12.1-1.3.1.src.rpm
$ /bin/rpm --rebuild cvs-1.12.1-1.3.1.src.rpm
$ su -
# /bin/rpm -Fvh /RPM/PKG/cvs-1.12.1-1.3.1.*.rpm
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References:
[0] http://www.cvshome.org/
[1] http://ccvs.cvshome.org/servlets/NewsItemView?newsID=85
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0977
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/1.2/UPD/cvs-1.11.5-1.2.3.src.rpm
[6] ftp://ftp.openpkg.org/release/1.3/UPD/cvs-1.12.1-1.3.1.src.rpm
[7] ftp://ftp.openpkg.org/release/1.2/UPD/
[8] ftp://ftp.openpkg.org/release/1.3/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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