Mailutils: Format string vulnerability in imap4d

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-mail/mailutils	< 0.6-r2	>= 0.6-r2	All supported architectures

Related bugreports: #105458

The imap4d server contains a vulnerability allowing an authenticated user to execute arbitrary code with the privileges of the imap4d process.

2. Impact Information

The GNU Mailutils are a collection of mail-related utilities, including an IMAP4 server (imap4d).

The imap4d server contains a format string bug in the handling of IMAP SEARCH requests.

An authenticated IMAP user could exploit the format string error in imap4d to execute arbitrary code as the imap4d user, which is usually root.

3. Resolution Information

There are no known workarounds at this time.

All GNU Mailutils users should upgrade to the latest available version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/mailutils-0.6-r2"

4. References

Updated September 17, 2005

Summary: This is a Gentoo Linux Security Advisory

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