U radu Cyrus IMAP poslužitelja otkriveno je više sigurnosnih propusta koje je moguće iskoristiti za pokretanje zlonamjernog programskog koda i DoS (eng. Denial of Service).
Paket:
cyrus-imapd 2.x
Operacijski sustavi:
Gentoo Linux
Kritičnost:
6.5
Problem:
pogreška u programskoj funkciji, pogreška u programskoj komponenti, preljev međuspremnika
Iskorištavanje:
lokalno/udaljeno
Posljedica:
dobivanje većih privilegija, proizvoljno izvršavanje programskog koda, uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2009-2632, CVE-2011-3208, CVE-2011-3481
Izvorni ID preporuke:
GLSA 201110-16
Izvor:
Gentoo
Problem:
Propusti su posljedica pogrešaka u datoteci "sieve/script.c" i funkciji "split_wildmats" što uzrokuje preljev međuspremnika.
Posljedica:
Neautentificirani lokalni ili udaljeni napadač može pokrenuti proizvoljni programski kod i izvesti DoS napad.
Rješenje:
Svim se korisnicima savjetuje instalacija novih inačica.
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Gentoo Linux Security Advisory GLSA 201110-16
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http://security.gentoo.org/
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Severity: High
Title: Cyrus IMAP Server: Multiple vulnerabilities
Date: October 22, 2011
Bugs: #283596, #382349, #385729
ID: 201110-16
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Synopsis
========
The Cyrus IMAP Server is affected by multiple vulnerabilities which
could potentially lead to the remote execution of arbitrary code or a
Denial of Service.
Background
==========
The Cyrus IMAP Server is an efficient, highly-scalable IMAP e-mail
server.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-mail/cyrus-imapd < 2.4.12 >= 2.4.12
Description
===========
Multiple vulnerabilities have been discovered in the Cyrus IMAP Server.
Please review the CVE identifiers referenced below for details.
Impact
======
An unauthenticated local or remote attacker may be able to execute
arbitrary code with the privileges of the Cyrus IMAP Server process or
cause a Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Cyrus IMAP Server users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/cyrus-imapd-2.4.12"
References
==========
[ 1 ] CVE-2009-2632
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-2632
[ 2 ] CVE-2011-3208
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3208
[ 3 ] CVE-2011-3481
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3481
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201110-16.xml
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
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite. or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2011 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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