Security update for cyrus-imapd

Knowledgebase

(Last modified: 22FEB2005)

solutions Security update for cyrus-imapd SuSE Linux Maintenance Web (9a5b2bdcb151fb4f3ff310f263b932b8)

Applies to

Package: cyrus-imapd
Release: 20050222
Obsoletes: none

Indications

Everyone using cyrus-imapd should update.

Contraindications

None.

Problem description

This update fixes several one-byte buffer overruns in the imap annote
extension as well as in cached header handling which can be run by an
authenticated user. Additionally bounds checking in fetchnews was improved to
avoid exploitation by a peer news admin. Please note that one-byte buffer
overflows can not be exploited to execute arbitrary commands by manipulating
the saved registers on the stack if the compiler used (gcc >= 3) aligns the
stack space. Nevertheless the code behaviour may be manipulated by overwriting
local variables. The result is not known but ranges between a
denial-of-service condition and privilege escalation.

Solution

Please install the updates 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 this command:


rpm -Fvh cyrus-imapd.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

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