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OpenPKG Security Advisory 2005.5

OpenPKG Security Advisory 2005.5
Posted Apr 17, 2005
Authored by OpenPKG Foundation | Site openpkg.org

OpenPKG Security Advisory - Sean Larsson discovered several vulnerabilities in the Cyrus IMAP Server that could allow a remote attacker to execute machine code in the context of the server process.

tags | advisory, remote, vulnerability, imap
advisories | CVE-2005-0546
SHA-256 | dc766910a5597e387997a31c713318fb88365ed4c081ca465246469e6e882fa8

OpenPKG Security Advisory 2005.5

Change Mirror Download
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Hash: SHA1

________________________________________________________________________

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-2005.005 05-Apr-2005
________________________________________________________________________

Package: imapd
Vulnerability: arbitrary code execution
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= imapd-2.2.10-20050129 >= imapd-2.2.11-20050214
OpenPKG 2.2 <= imapd-2.2.8-2.2.1 >= imapd-2.2.8-2.2.2

Dependent Packages: none

Description:
Sean Larsson discovered several vulnerabilities in the Cyrus IMAP
Server [0] that could allow a remote attacker to execute machine code
in the context of the server process.

The Cyrus Electronic Messaging Project identified the affected
server logic and released a security advisory [1]. Essentially,
the application is affected by multiple one byte buffer overflows
affecting the IMAP annotate extension and cached header handling
routines. Additionally, stack based overflows affecting the fetchnews,
backend, and imapd logic exist as well. The Common Vulnerabilities and
Exposures (CVE) project assigned the identifier CAN-2005-0546 [2] to
the problem.

Please check whether you are affected by running "<prefix>/bin/openpkg
rpm -q imapd". If you have the "imapd" 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], fetch it from the OpenPKG FTP service [6] or a mirror location,
verify its integrity [7], build a corresponding binary RPM from it
[3] and update your OpenPKG installation by applying the binary RPM
[4]. For the most previous release OpenPKG 2.2, perform the following
operations to permanently fix the security problem.

$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.2/UPD
ftp> get imapd-2.2.8-2.2.2.src.rpm
ftp> bye
$ <prefix>/bin/openpkg rpm -v --checksig imapd-2.2.8-2.2.2.src.rpm
$ <prefix>/bin/openpkg rpm --rebuild imapd-2.2.8-2.2.2.src.rpm
$ su -
# <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/imapd-2.2.8-2.2.2.*.rpm
________________________________________________________________________

References:
[0] http://asg.web.cmu.edu/cyrus/imapd/
[1] http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=33723
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0546
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/2.2/UPD/imapd-2.2.8-2.2.2.src.rpm
[6] ftp://ftp.openpkg.org/release/2.2/UPD/
[7] 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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