Security update for package cyrus-imapd

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(Last modified: 25NOV2004)

solutions Security update for package cyrus-imapd SuSE Linux Maintenance Web (a67c0b43e3aee4dbdad233f310f8c6e5)

Applies to

Package: cyrus-imapd
Product(s): SUSE CORE 9 for x86
SUSE CORE 9 for Itanium Processor Family
SUSE CORE 9 for IBM POWER
SUSE CORE 9 for IBM S/390 31bit
SUSE CORE 9 for IBM zSeries 64bit
SUSE CORE 9 for AMD64 and Intel EM64T
Patch: patch-9510
Release: 20041125
Obsoletes: none

Indications

Everyone using the Cyrus IMAP Server should install this security update.

Contraindications

None.

Problem description

A security audit of the Cyrus IMAP server performed by Stefan Esser revealed a remotely exploitable heap overflow. The vulnerability potentially can be abused by an attacker to run untrusted code as the user cyrus-imapd is running as (usually "cyrus".) This update fixes the vulnarbility.
The following bugs also have been found and fixed with this update:

Reconstruct was not able to reconstruct mailbox header files if they were completely missing.
Fixes for the sieve vacation functionality. Existing sieve scripts must be recompiled when installing this update, e.g. by using the tool masssievec. These commands can be used to do that: find /var/lib/sieve -name "*.bc" | xargs rm -v<br /> su - cyrus -c '/usr/share/doc/packages/cyrus-imapd/tools/masssievec /usr/lib/cyrus/bin/sievec' It is recommended to create a backup of /var/lib/sieve first.
Backported from recent Cyrus IMAP server versions:
- Vacation addresses are now handled case insensitive.
- Added precedence "junk | bulk | list" handling for vacation

Solution

Please install the update provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using these commands:
rccyrus stop<br/> rpm -Uvh cyrus-imapd.rpm<br/> # recompile sieve scripts as shown above<br/> rccyrus start

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.

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