Bug#548773: closed by Laszlo Boszormenyi g...@debian.hu (neon27 v0.29.0 insecure algorithm error)

2009-10-07 Thread Laszlo Boszormenyi
Hi Simon,

On Mon, 2009-10-05 at 16:36 +0200, Simon Eugster wrote:
 Would it be possible for subversion to nevertheless allow me to continue 
 with this operations? Or is that strictly forbidden by libneon?
 I don't know if it's possible in Subversion. As I have seen, you posted
this bug on a mailing list related to it; but didn't get any workaround
in the reply. I have already noted that this error comes from GNU TLS,
neon just prints the error message. Some day ago I have quickly browsed
the source and it may be possible to alter neon to pass some flags to
GNU TLS asking it to ignore this error. But no, I won't do unofficial
changes just to hide real security problems.
Generate a new certificate with a secure algorithm and you will be fine.

Regards,
Laszlo/GCS




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Bug#548773: closed by Laszlo Boszormenyi g...@debian.hu (neon27 v0.29.0 insecure algorithm error)

2009-10-05 Thread Simon Eugster

Hi Laszlo,

Thanks for your answer!
Would it be possible for subversion to nevertheless allow me to continue 
with this operations? Or is that strictly forbidden by libneon?


Simon

Debian Bug Tracking System wrote:

This is an automatic notification regarding your Bug report
which was filed against the libneon27-gnutls package:

#548773: [libneon27-gnutls] authentication to subversion via https fails with 
Insecure Algorithm error

It has been closed by Laszlo Boszormenyi g...@debian.hu.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Laszlo Boszormenyi 
g...@debian.hu by
replying to this email.






Subject:
neon27 v0.29.0 insecure algorithm error
From:
Laszlo Boszormenyi g...@debian.hu
Date:
Mon, 05 Oct 2009 00:46:16 +0200
To:
548773-d...@bugs.debian.org

To:
548773-d...@bugs.debian.org


Hi Simon,

It's an user error. Please read the details of this error message[1]. It
comes from GNU TLS, quoting the description:
GNUTLS_CERT_INSECURE_ALGORITHM:
The certificate was signed using an insecure algorithm such as
MD2 or MD5. These algorithms have been broken and should not be
trusted.

Please recreate your certificate with a trusted algorithm and it will be
fine with neon.

Regards,
Laszlo/GCS
[1] 
http://www.gnu.org/software/gnutls/manual/html_node/Verifying-X_002e509-certificate-paths.html






Subject:
[libneon27-gnutls] authentication to subversion via https fails with 
Insecure Algorithm error

From:
Simon Eugster simon...@gmail.com
Date:
Mon, 28 Sep 2009 19:29:36 +0200
To:
sub...@bugs.debian.org

To:
sub...@bugs.debian.org


Package: libneon27-gnutls
Version: 0.29.0-1
Severity: serious

--- Please enter the report below this line. ---
Since 0.29.0-1 I've got the following problem when trying to do anything 
with svn (update, commit, checkout, whatever):

$ svn up
svn: OPTIONS von »https://myuri/...«: Certificate verification error: 
signed using insecure algorithm (https://myuri)

Downgraded libneon27 and libneon27-gnutls to 0.28.6-1 solved the problem.

I tagged this as serious because users depending on svn and not knowing 
the origin of this problem may really have a problem.


--- System information. ---
Architecture: i386
Kernel:   Linux 2.6.31-1.slh.1-sidux-686

Debian Release: squeeze/sid
  500 unstablewww.debian-multimedia.org
  500 unstableftp.spline.de
  500 unstableftp.ch.debian.org

--- Package information. ---
Depends   (Version) | Installed
===-+-===
libc6  (= 2.3) | 2.9-26
libcomerr2(= 1.01) | 1.41.9-1
libgcrypt11  (= 1.4.2) | 1.4.4-4
libgnutls26   (= 2.7.14-0) | 2.8.4-1
libgpg-error0(= 1.6-1) | 1.6-1
libgssapi-krb5-2 (= 1.7dfsg~beta1) | 1.7dfsg~beta3-1
libk5crypto3(= 1.6.dfsg.2) | 1.7dfsg~beta3-1
libkrb5-3   (= 1.6.dfsg.2) | 1.7dfsg~beta3-1
libtasn1-3   (= 1.6-0) | 2.3-1
libxml2 (= 2.6.27) | 2.7.5.dfsg-1
zlib1g (= 1:1.1.4) | 1:1.2.3.3.dfsg-15


Recommends   (Version) | Installed
==-+-===
ca-certificates| 20090814


Package's Suggests field is empty.









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