Bug 537932 (CVE-2009-3942) - CVE-2009-3942 msmtp SSL NULL prefix flaw
Summary: CVE-2009-3942 msmtp SSL NULL prefix flaw
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2009-3942
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL: http://web.nvd.nist.gov/view/vuln/det...
Whiteboard:
Depends On: 537933 537934 537935 537936
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-11-16 20:37 UTC by Josh Bressers
Modified: 2019-09-29 12:33 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-11-28 17:24:25 UTC
Embargoed:

Attachments (Terms of Use)

Description Josh Bressers 2009-11-16 20:37:49 UTC 
Martin Lambers msmtp before 1.4.19, when OpenSSL is used, does not
properly handle a '\0' character in a domain name in the (1) subject's
Common Name or (2) Subject Alternative Name field of an X.509
certificate, which allows man-in-the-middle attackers to spoof
arbitrary SSL servers via a crafted certificate issued by a legitimate
Certification Authority, a related issue to CVE-2009-2408.

Reference: CONFIRM:http://msmtp.sourceforge.net/news.html
Reference: URL:http://secunia.com/advisories/37321
Reference: URL:http://www.vupen.com/english/advisories/2009/3224
Comment 1 Josh Bressers 2009-11-16 20:38:41 UTC 
Created msmtp tracking bugs for this issue

CVE-2009-3942 Affects: F10 [bug #537933]
CVE-2009-3942 Affects: F11 [bug #537934]
CVE-2009-3942 Affects: F12 [bug #537935]
CVE-2009-3942 Affects: Fdevel [bug #537936]
Comment 2 Tomas Hoger 2009-11-22 18:26:02 UTC 
(In reply to comment #0)
> Martin Lambers msmtp before 1.4.19, when OpenSSL is used

Fedora packages use GnuTLS, so this should be notabug.  See my comment in the similar mpop bug:
  https://bugzilla.redhat.com/show_bug.cgi?id=537927#c4
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