FreeBSD : Courier mail services: remotely exploitable buffer overflows (98bd69c3-834b-11d8-a41f-0020ed76ef5a)

This script is Copyright (C) 2005-2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

The Courier set of mail services use a common Unicode library. This
library contains buffer overflows in the converters for two popular
Japanese character encodings. These overflows may be remotely
exploitable, triggered by a maliciously formatted email message that
is later processed by one of the Courier mail services. From the
release notes for the corrected versions of the Courier set of mail
services :

iso2022jp.c: Converters became (upper-)compatible with ISO-2022-JP
(RFC1468 / JIS X 0208:1997 Annex 2) and ISO-2022-JP-1 (RFC2237).
Buffer overflow vulnerability (when Unicode character is out of BMP
range) has been closed. Convert error handling was implemented.

shiftjis.c: Broken SHIFT_JIS converters has been fixed and became
(upper-)compatible with Shifted Encoding Method (JIS X 0208:1997 Annex
1). Buffer overflow vulnerability (when Unicode character is out of
BMP range) has been closed. Convert error handling was implemented.

See also :

http://www.nessus.org/u?1a3ae431
http://www.nessus.org/u?6efec52b
http://www.nessus.org/u?48126b13

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 19044 (freebsd_pkg_98bd69c3834b11d8a41f0020ed76ef5a.nasl)

Bugtraq ID: 9845

CVE ID: CVE-2004-0224

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