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FreeBSD: fetchmail -- chosen plaintext attack against SSL CBC initialization vectors (CVE-2011-3389)

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FreeBSD: fetchmail -- chosen plaintext attack against SSL CBC initialization vectors (CVE-2011-3389)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
09/06/2011
Created
07/25/2018
Added
05/08/2014
Modified
05/27/2016

Description

The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a "BEAST" attack.

Solution(s)

  • freebsd-upgrade-package-fetchmail

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