GLSA 200502-29: Cyrus IMAP Server: Multiple overflow vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Cyrus IMAP Server: Multiple overflow vulnerabilities
Date:	02/23/2005
Bugs:	#82404
ID:	200502-29

Synopsis

The Cyrus IMAP Server is affected by several overflow vulnerabilities which could potentially lead to the remote execution of arbitrary code.

Background

The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail server.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-mail/cyrus-imapd	< 2.2.12	>= 2.2.12	All supported architectures

Description

Possible single byte overflows have been found in the imapd annotate extension and mailbox handling code. Furthermore stack buffer overflows have been found in fetchnews, the backend and imapd.

Impact

An attacker, who could be an authenticated user or an admin of a peering news server, could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the Cyrus IMAP Server.

Workaround

There is no known workaround at this time.

Resolution

All Cyrus IMAP Server users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.2.12"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-29.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.