drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in fetchmail
Name: |
Pufferüberlauf in fetchmail
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ID: |
200507-21 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 26. Juli 2005, 13:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2335
http://fetchmail.berlios.de/fetchmail-SA-2005-01.txt |
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Applikationen: |
Fetchmail |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200507-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: fetchmail: Buffer Overflow Date: July 25, 2005 Bugs: #99865 ID: 200507-21
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Synopsis ========
fetchmail is susceptible to a buffer overflow resulting in a Denial of Service or arbitrary code execution.
Background ==========
fetchmail is a utility that retrieves and forwards mail from remote systems using IMAP, POP, and other protocols.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/fetchmail < 6.2.5.2 >= 6.2.5.2
Description ===========
fetchmail does not properly validate UIDs coming from a POP3 mail server. The UID is placed in a fixed length buffer on the stack, which can be overflown.
Impact ======
Very long UIDs returned from a malicious or compromised POP3 server can cause fetchmail to crash, resulting in a Denial of Service, or allow arbitrary code to be placed on the stack.
Workaround ==========
There are no known workarounds at this time.
Resolution ==========
All fetchmail users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/fetchmail-6.2.5.2"
References ==========
[ 1 ] Fetchmail Security Advisory http://fetchmail.berlios.de/fetchmail-SA-2005-01.txt [ 2 ] CAN-2005-2335 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2335
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200507-21.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 security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License =======
Copyright 2005 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/2.0
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