Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200403-06 ] Multiple remote buffer overflow vulnerabilities in Courier
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Bodhisattva
Bodhisattva


Joined: 13 Jun 2003
Posts: 4087
Location: Dresden, Germany

PostPosted: Mon Mar 29, 2004 12:14 pm    Post subject: [ GLSA 200403-06 ] Multiple remote buffer overflow vulnerabi Reply with quote

Gentoo Linux Security Advisory

Title: Multiple remote buffer overflow vulnerabilities in Courier (GLSA 200403-06)
Severity: normal
Exploitable: remote
Date: March 26, 2004
Bug(s): #45584
ID: 200403-06

Synopsis


Remote buffer overflow vulnerabilities have been found in Courier-IMAP and
Courier MTA. These exploits may allow the execution of abritrary code,
allowing unauthorized access to a vulnerable system.


Background


Courier MTA is a multiprotocol mail server suite that provides webmail,
mailing lists, IMAP, and POP3 services. Courier-IMAP is a standalone server
that gives IMAP access to local mailboxes.


Affected Packages

Package: net-mail/courier-imap
Vulnerable: < 3.0.0
Unaffected: >= 3.0.0
Architectures: All supported architectures

Package: mail-mta/courier
Vulnerable: < 0.45
Unaffected: >= 0.45
Architectures: All supported architectures


Description


The vulnerabilities have been found in the 'SHIFT_JIS' converter in
'shiftjis.c' and 'ISO2022JP' converter in 'so2022jp.c'. An attacker may
supply Unicode characters that exceed BMP (Basic Multilingual Plane) range,
causing an overflow.


Impact


An attacker without privileges may exploit this vulnerability remotely, allowing arbitrary code to be executed in order to gain unauthorized access.


Workaround


While a workaround is not currently known for this issue, all users are
advised to upgrade to the latest version of the affected packages.


Resolution


All users should upgrade to current versions of the affected packages:
Code:
# emerge sync

    # emerge -pv ">=net-mail/courier-imap-3.0.0"
    # emerge ">=net-mail/courier-imap-3.0.0"

    # ** Or; depending on your installation... **

    # emerge -pv ">=mail-mta/courier-0.45"
    # emerge ">=mail-mta/courier-0.45"
   


References

Courier Multiple Remote Buffer Overflow Vulnerabilities
CAN-2004-0224


Last edited by GLSA on Fri Jun 22, 2012 4:16 am; edited 2 times in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum