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fetchmail-SA-2005-01: security announcement
Topic: remote code injection vulnerability in fetchmail
Author: Matthias Andree
-Version: 1.01
+Version: 1.04
Announced: 2005-07-21
Type: buffer overrun/stack corruption/code injection
Impact: account or system compromise possible through malicious
or compromised POP3 servers
Danger: high: in sensitive configurations, a full system
compromise is possible
-CVE Name: CAN-2005-2335
+ (for 6.2.5.1: denial of service for the whole fetchmail
+ system is possible)
+CVE Name: CVE-2005-2335
URL: http://fetchmail.berlios.de/fetchmail-SA-2005-01.txt
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=212762
http://www.vuxml.org/freebsd/3497d7be-2fef-45f4-8162-9063751b573a.html
+ http://www.vuxml.org/freebsd/3f4ac724-fa8b-11d9-afcf-0060084a00e5.html
http://www.freebsd.org/cgi/query-pr.cgi?pr=83805
+ http://www.heise.de/security/news/meldung/62070
Thanks: Edward J. Shornock (located the bug in UIDL code)
Miloslav Trmac (pointed out 6.2.5.1 was faulty)
- Ludwig Nussel (provided minimal fix)
+ Ludwig Nussel (provided minimal correct fix)
Affects: fetchmail version 6.2.5.1 (denial of service)
fetchmail version 6.2.5 (code injection)
(other versions have not been checked)
Not affected: fetchmail 6.2.5.2
- fetchmail 6.2.6-pre7
- fetchmail 6.3.0 (not released yet)
+ fetchmail 6.2.5.4
+ fetchmail 6.3.0
Older versions may not have THIS bug, but had been found
to contain other security-relevant bugs.
Corrected: 2005-07-22 01:37 UTC (SVN) - committed bugfix (r4157)
2005-07-22 fetchmail-patch-6.2.5.2 released
+ 2005-07-23 fetchmail-6.2.5.2 tarball released
+ 2005-11-13 fetchmail-6.2.5.4 tarball released
+ 2005-11-30 fetchmail-6.3.0 tarball released
0. Release history
2005-07-22 1.01 - Withdrew 6.2.5.1 and 6.2.6-pre5, the fix was buggy
and susceptible to denial of service through
single-byte read from 0 when either a Message-ID:
- header was empty or the UIDL response did not
- contain an URL.
+ header was empty (in violation of RFC-822/2822)
+ or the UIDL response did not contain an UID (in
+ violation of RFC-1939).
- Add Credits.
- Add 6.2.5.1 failure details to sections 2 and 3
- Revise section 5 and B.
+2005-07-26 1.02 - Revise section 0.
+ - Add FreeBSD VuXML URL for 6.2.5.1.
+ - Add heise security URL.
+ - Mention release of 6.2.5.2 tarball.
+2005-10-27 1.03 - Update CVE Name after CVE naming change
+2005-12-08 1.04 - Mention 6.2.5.4 and 6.3.0 releases "not affected"
+ - remove patch information
1. Background
5. Solution
-Upgrade your fetchmail package to version 6.2.5.2.
-
-This requires the download of the fetchmail-6.2.5.tar.gz tarball and the
-fetchmail-patch-6.2.5.2.gz from BerliOS:
+Upgrade your fetchmail package to version 6.3.0 or newer.
<http://developer.berlios.de/project/showfiles.php?group_id=1824>
-To use the patch:
-
- 1. download fetchmail-6.2.5.tar.gz (or retrieve the version you already
- had downloaded) and fetchmail-patch-6.2.5.2.tar.gz
- 2. unpack the tarball: gunzip -c fetchmail-6.2.5.tar.gz | tar xf -
- 3. unpack the patch: gunzip fetchmail-patch-6.2.5.2.gz
- 4. apply the patch: cd fetchmail-6.2.5 ; patch -p1 <../fetchmail-patch-6.2.5.2
- 5. now configure and build as usual - detailed instructions in the file
- named "INSTALL".
-
A. References
fetchmail home page: <http://fetchmail.berlios.de/>
(C) Copyright 2005 by Matthias Andree, <matthias.andree@gmx.de>.
Some rights reserved.
-This work is licensed under the Creative Commons
-Attribution-NonCommercial-NoDerivs German License. To view a copy of
-this license, visit http://creativecommons.org/licenses/by-nc-nd/2.0/de/
-or send a letter to Creative Commons; 559 Nathan Abbott Way;
-Stanford, California 94305; USA.
+This work is licensed under the
+Creative Commons Attribution-NoDerivs 3.0 Germany License (CC BY-ND 3.0).
+
+To view a copy of this license, visit
+http://creativecommons.org/licenses/by-nd/3.0/de/deed.en
+or send a letter to:
+
+Creative Commons
+444 Castro Street
+Suite 900
+MOUNTAIN VIEW, CALIFORNIA 94041
+USA
THIS WORK IS PROVIDED FREE OF CHARGE AND WITHOUT ANY WARRANTIES.
Use the information herein at your own risk.
END OF fetchmail-SA-2005-01.txt
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projects / ~andy / fetchmail / blobdiff