Fetchmail NULL Character Flaw in Common Name Field Lets Remote Users Spoof Certficiates
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SecurityTracker Alert ID: 1022679 |
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SecurityTracker URL: http://securitytracker.com/id/1022679
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CVE Reference:
CVE-2009-2666
(Links to External Site)
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Date: Aug 7 2009
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Impact:
Modification of authentication information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 6.3.10 and prior versions
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Description:
A vulnerability was reported in Fetchmail. A remote user can spoof certificates of arbitrary sites.
A remote user can create a certificate with a specially crafted Common Name field OR subjectAltName field that contains a NULL character. Once the certificate is signed by a Certificate Authority, the certificate can be used to spoof a target site's certificate.
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Impact:
A remote user can spoof certificates of arbitrary sites.
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Solution:
The vendor has issued a fix (6.3.11).
The vendor's advisory is available at:
http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt
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Vendor URL: fetchmail.berlios.de/fetchmail-SA-2009-01.txt (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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