drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberläufe in courier
Name: |
Pufferüberläufe in courier
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ID: |
200403-06 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 30. März 2004, 13:00 |
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Referenzen: |
Keine Angabe |
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Applikationen: |
Courier |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200403-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Multiple remote buffer overflow vulnerabilities in Courier Date: March 26, 2004 Bugs: #45584 ID: 200403-06
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Synopsis ========
Remote buffer overflow vulnerabilites 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 / Vulnerable / Unaffected ------------------------------------------------------------------- net-mail/courier-imap < 3.0.0 >= 3.0.0 net-mail/courier < 0.45 >= 0.45
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 the current version of the affected packages:
# 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 ">=net-mail/courier-0.45" # emerge ">=net-mail/courier-0.45"
References ==========
[ 1 ] http://www.securityfocus.com/bid/9845 [ 2 ] http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0224
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
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