This script is Copyright (C) 2004-2015 Tenable Network Security, Inc.
The remote Gentoo host is missing one or more security-related
The remote host is affected by the vulnerability described in GLSA-200408-19
(courier-imap: Remote Format String Vulnerability)
There is a format string vulnerability in the auth_debug() function
which can be exploited remotely, potentially leading to arbitrary code
execution as the user running the IMAP daemon (oftentimes root). A
remote attacker may send username or password information containing
printf() format tokens (such as '%s'), which will crash the server or
cause it to execute arbitrary code.
This vulnerability can only be exploited if DEBUG_LOGIN is set to
something other than 0 in the imapd config file.
If DEBUG_LOGIN is enabled in the imapd configuration, a remote attacker
may execute arbitrary code as the root user.
Set the DEBUG_LOGIN option in /etc/courier-imap/imapd to 0. (This is
the default value.)
See also :
All courier-imap users should upgrade to the latest version:
# emerge sync
# emerge -pv '>=net-mail/courier-imap-3.0.5'
# emerge '>=net-mail/courier-imap-3.0.5'
Risk factor :
High / CVSS Base Score : 7.5
Family: Gentoo Local Security Checks
Nessus Plugin ID: 14575 (gentoo_GLSA-200408-19.nasl)
CVE ID: CVE-2004-0777
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