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VuXML IDDescription
98bd69c3-834b-11d8-a41f-0020ed76ef5aCourier mail services: remotely exploitable buffer overflows

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.


Discovery 2004-02-01
Entry 2004-03-31
Modified 2004-07-16
courier
< 0.45

courier-imap
< 3.0,1

sqwebmail
< 4.0

CVE-2004-0224
http://cvs.sourceforge.net/viewcvs.py/courier/libs/unicode/iso2022jp.c?rev=1.10&view=markup
http://cvs.sourceforge.net/viewcvs.py/courier/libs/unicode/shiftjis.c?rev=1.6&view=markup
9845
http://secunia.com/advisories/11087
http://www.osvdb.org/4194
http://www.osvdb.org/6927