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Bekijk Volledige Versie : [OpenPKG-SA-2004.011] OpenPKG Security Advisory (sharutils)



OpenPKG
08/04/04, 02:15
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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-2004.011 07-Apr-2004
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Package: sharutils
Vulnerability: arbitrary code execution
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= sharutils-4.2.1-20011201 >= sharutils-4.2.1-20040407
OpenPKG 2.0 <= sharutils-4.2.1-2.0.0 >= sharutils-4.2.1-2.0.1
OpenPKG 1.3 <= sharutils-4.2.1-1.3.0 >= sharutils-4.2.1-1.3.1

Dependent Packages: none

Description:
According to a posting on Bugtraq [1], Shaun Colley discovered and
researched a stack-based buffer overflow vulnerability which exists in
the GNU Sharutils [2] due to lack of bounds checking when handling the
'-o' command-line option.

Please check whether you are affected by running "<prefix>/bin/rpm
-q sharutils". If you have the "sharutils" 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 sharutils-4.2.1-2.0.1.src.rpm
ftp> bye
$ <prefix>/bin/openpkg rpm -v --checksig sharutils-4.2.1-2.0.1.src.rpm
$ <prefix>/bin/openpkg rpm --rebuild sharutils-4.2.1-2.0.1.src.rpm
$ su -
# <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/sharutils-4.2.1-2.0.1.*.rpm
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References:
[1] http://www.securityfocus.com/archive/1/359639
[2] http://www.gnu.org/software/sharutils/
[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/sharutils-4.2.1-1.3.1.src.rpm
[6] ftp://ftp.openpkg.org/release/2.0/UPD/sharutils-4.2.1-2.0.1.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 <openpkg@openpkg.org>" (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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