Description:
Evgeny Demidov discovered that the Samba SMB/CIFS server [1] has a
buffer overflow bug in the Samba Web Administration Tool (SWAT) on
decoding Base64 data during HTTP Basic Authentication. Samba version
between 3.0.2 through 3.0.4 are affected. The Common Vulnerabilities
and Exposures (CVE) project assigned the id CAN-2004-0600 [2] to the
problem.
Another buffer overflow bug has been located in the Samba code
used to support the "mangling method = hash" functionality. The
default setting for this parameter is "mangling method = hash2"
and therefore Samba is not vulnerable by default. Samba versions
between 2.2.0 through 2.2.9 and 3.0.0 through 3.0.4 are affected. The
Common Vulnerabilities and Exposures (CVE) project assigned the id
CAN-2004-0686 [3] to the problem.
Please check whether you are affected by running "<prefix>/bin/rpm -q
samba". If you have the "samba" package installed and its version is
affected (see above), we recommend that you immediately upgrade it
(see Solution). [4][5]
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[6][7], fetch it from the OpenPKG FTP service [8][9] or a mirror
location, verify its integrity [10], build a corresponding binary
RPM from it [4] and update your OpenPKG installation by applying the
binary RPM [5]. For the current release OpenPKG 2.1, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.1/UPD
ftp> get samba-3.0.4-2.1.1.src.rpm
ftp> bye
$ <prefix>/bin/rpm -v --checksig samba-3.0.4-2.1.1.src.rpm
$ <prefix>/bin/rpm --rebuild samba-3.0.4-2.1.1.src.rpm
$ su -
# <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/samba-3.0.4-2.1.1.*.rpm
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg (at) openpkg (dot) org [email concealed]>" (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.
________________________________________________________________________
Hash: SHA1
________________________________________________________________________
OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
openpkg-security (at) openpkg (dot) org [email concealed] openpkg (at) openpkg (dot) org [email concealed]
OpenPKG-SA-2004.033 22-Jul-2004
________________________________________________________________________
Package: samba
Vulnerability: arbitrary code execution
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= samba-3.0.4-20040722 >= samba-3.0.5-20040722
OpenPKG 2.1 <= samba-3.0.4-2.1.0 >= samba-3.0.4-2.1.1
OpenPKG 2.0 <= samba-2.2.8a-2.0.0 >= samba-2.2.8a-2.0.1
Dependent Packages: none
Description:
Evgeny Demidov discovered that the Samba SMB/CIFS server [1] has a
buffer overflow bug in the Samba Web Administration Tool (SWAT) on
decoding Base64 data during HTTP Basic Authentication. Samba version
between 3.0.2 through 3.0.4 are affected. The Common Vulnerabilities
and Exposures (CVE) project assigned the id CAN-2004-0600 [2] to the
problem.
Another buffer overflow bug has been located in the Samba code
used to support the "mangling method = hash" functionality. The
default setting for this parameter is "mangling method = hash2"
and therefore Samba is not vulnerable by default. Samba versions
between 2.2.0 through 2.2.9 and 3.0.0 through 3.0.4 are affected. The
Common Vulnerabilities and Exposures (CVE) project assigned the id
CAN-2004-0686 [3] to the problem.
Please check whether you are affected by running "<prefix>/bin/rpm -q
samba". If you have the "samba" package installed and its version is
affected (see above), we recommend that you immediately upgrade it
(see Solution). [4][5]
Solution:
Select the updated source RPM appropriate for your OpenPKG release
[6][7], fetch it from the OpenPKG FTP service [8][9] or a mirror
location, verify its integrity [10], build a corresponding binary
RPM from it [4] and update your OpenPKG installation by applying the
binary RPM [5]. For the current release OpenPKG 2.1, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).
$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.1/UPD
ftp> get samba-3.0.4-2.1.1.src.rpm
ftp> bye
$ <prefix>/bin/rpm -v --checksig samba-3.0.4-2.1.1.src.rpm
$ <prefix>/bin/rpm --rebuild samba-3.0.4-2.1.1.src.rpm
$ su -
# <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/samba-3.0.4-2.1.1.*.rpm
________________________________________________________________________
References:
[1] http://www.samba.org/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0600
[3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0686
[4] http://www.openpkg.org/tutorial.html#regular-source
[5] http://www.openpkg.org/tutorial.html#regular-binary
[6] ftp://ftp.openpkg.org/release/2.1/UPD/samba-3.0.4-2.1.1.src.rpm
[7] ftp://ftp.openpkg.org/release/2.0/UPD/samba-2.2.8a-2.0.1.src.rpm
[8] ftp://ftp.openpkg.org/release/2.1/UPD/
[9] ftp://ftp.openpkg.org/release/2.0/UPD/
[10] http://www.openpkg.org/security.html#signature
________________________________________________________________________
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <openpkg (at) openpkg (dot) org [email concealed]>" (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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