Bug 1060411 - "An illegal TLS extension was received" error when doing homebanking
Summary: "An illegal TLS extension was received" error when doing homebanking
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: gnutls
Version: 20
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Tomas Mraz
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-02-01 11:46 UTC by Enrico Scholz
Modified: 2014-02-07 03:15 UTC (History)
3 users (show)

Fixed In Version: gnutls-3.1.20-1.fc20
Clone Of:
Environment:
Last Closed: 2014-02-07 03:15:54 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Enrico Scholz 2014-02-01 11:46:20 UTC
Description of problem:

When trying to connect to my credit institute with aqbanking, I get the error above.  This can be reproduced on cmdline with

$ gnutls-cli fints.comdirect.de
Processed 153 CA certificate(s).
Resolving 'fints.comdirect.de'...
Connecting to '193.41.133.14:443'...
*** Fatal error: An illegal TLS extension was received.
*** Handshake has failed
GnuTLS error: An illegal TLS extension was received.


Things are fine when using gnutls-2.8.5 from RHEL6.


Version-Release number of selected component (if applicable):

gnutls-3.1.18-3.fc20.x86_64


How reproducible:

100%

Comment 1 Nikos Mavrogiannopoulos 2014-02-01 19:19:52 UTC
It seems that the server includes in its ServerHello the "Supported Elliptic Curves Extension" which is only defined for usage in a ClientHello. That's an issue of the server mainly, but seeing that other implementations tolerate that gnutls could be more lenient with that server. 

A work around with that broken server would be to use the priority string "NORMAL:-CURVE-ALL".

Comment 2 Fedora Update System 2014-02-03 10:21:24 UTC
gnutls-3.1.20-1.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/gnutls-3.1.20-1.fc20

Comment 3 Fedora Update System 2014-02-04 02:43:26 UTC
Package gnutls-3.1.20-1.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing gnutls-3.1.20-1.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-1960/gnutls-3.1.20-1.fc20
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2014-02-07 03:15:54 UTC
gnutls-3.1.20-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.