Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [day] [month] [year] [list]
Date: Tue, 5 May 2015 10:47:49 +0200
From: Salvatore Bonaccorso <>
To: OSS Security Mailinglist <>
Cc: CVE Assignments MITRE <>
Subject: CVE Request: GnuTLS: GNUTLS-SA-2015-2: MD5-based ServerKeyExchange
 signature accepted by default


I wonder if the following issue in GnuTLS should get a CVE:

> Karthikeyan Bhargavan reported that a ServerKeyExchange signature
> sent by the server is not verified to be in the acceptable by the
> client set of algorithms. That has the effect of allowing MD5
> signatures (which are disabled by default) in the ServerKeyExchange
> message. It is not believed that this bug can be exploited because a
> fraudulent signature has to be generated in real-time which is not
> known to be possible. However, since attacks can only get better it
> is recommended to update to a GnuTLS version which addresses the
> issue.


Upstream commit:



Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.