Login
Login-Name Passwort


 
Newsletter
Werbung

Sicherheit: Mehrere Probleme in GnuTLS
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in GnuTLS
ID: USN-2540-1
Distribution: Ubuntu
Plattformen: Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 14.10
Datum: Mo, 23. März 2015, 22:45
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8155
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0282
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0294

Originalnachricht

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============6525037600337608410==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="lwpbNRXMjfhuvfCSGWBp21nKMo1UPF0H3"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--lwpbNRXMjfhuvfCSGWBp21nKMo1UPF0H3
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-2540-1
March 23, 2015

gnutls26, gnutls28 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in GnuTLS.

Software Description:
- gnutls28: GNU TLS library
- gnutls26: GNU TLS library

Details:

It was discovered that GnuTLS did not perform date and time checks on
CA certificates, contrary to expectations. This issue only affected
Ubuntu 10.04 LTS. (CVE-2014-8155)

Nikos Mavrogiannopoulos discovered that GnuTLS incorrectly verified that
signature algorithms matched. A remote attacker could possibly use this
issue to downgrade to a disallowed algorithm. This issue only affected
Ubuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-0282)

It was discovered that GnuTLS incorrectly verified certificate algorithms.
A remote attacker could possibly use this issue to downgrade to a
disallowed algorithm. (CVE-2015-0294)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
libgnutls-deb0-28 3.2.16-1ubuntu2.2

Ubuntu 14.04 LTS:
libgnutls26 2.12.23-12ubuntu2.2

Ubuntu 12.04 LTS:
libgnutls26 2.12.14-5ubuntu3.9

Ubuntu 10.04 LTS:
libgnutls26 2.8.5-2ubuntu0.7

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2540-1
CVE-2014-8155, CVE-2015-0282, CVE-2015-0294

Package Information:
https://launchpad.net/ubuntu/+source/gnutls28/3.2.16-1ubuntu2.2
https://launchpad.net/ubuntu/+source/gnutls26/2.12.23-12ubuntu2.2
https://launchpad.net/ubuntu/+source/gnutls26/2.12.14-5ubuntu3.9
https://launchpad.net/ubuntu/+source/gnutls26/2.8.5-2ubuntu0.7



--lwpbNRXMjfhuvfCSGWBp21nKMo1UPF0H3
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iQIcBAEBCgAGBQJVEHHIAAoJEGVp2FWnRL6TCKAQAIRlwPUymmjLl30HAZ/tDbMS
h9qNSU3cRIdrJxpStfGGt7J16gHcgN1PwTliArwXW6aTyRqsNZGkphzKSZFMTMa/
7eHpmRWWOSC93FGI6kQrfXjLNxpOWJyYk8ZOIvaNqsgOr5tEWs0Zg/cFgHQLKzKO
sopfbsCSjNHr/DXOUYTzag70NF4AGwRLWGE7qanaCDEVPVQv+xZk6z2GlKOOpx/A
kCjV1qpotLwRD0FZm4DEc/zLr27YzxPiaymdq6OVRPCVaaVmjCmm18qfa+MwHfay
NzGWeMRnIOUyYalbJevDLn5ZAxLPO54hnfb82yJLCaUalJVYUs6ZSHip0DMd5V8f
TIO0NglL+XFiimniwb0KLbTW4KjnKLdtfv/brUxn+xV1lBrprA4s380yNSqFY2O5
PgWGNNBy89Hnsw0oZBgUG+WvQSgCP8n0GA1JuHf9hqYFoWDI7bVJYUPxQZiizhBi
CxWTE8oHpUejVEGvA7bDLF71yeCMDrXbey46N3RVrXOIyeEglbVX1qRR6QFxyjFh
keQPsUf2DC/GgDaxVVVWn1Rjo+Pm2yFi9gcNh5W9QL863v9ubmbMuGJ2cA11O03G
J0VjmmxoFviOqK8CLbx/hbtcLdbqPjYan+/dR31sMwb8iSlD3SAPfNRU1h5GiKcP
vmit9AnErEI9W8ntnD1F
=7/Ly
-----END PGP SIGNATURE-----

--lwpbNRXMjfhuvfCSGWBp21nKMo1UPF0H3--


--===============6525037600337608410==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

--===============6525037600337608410==--
Pro-Linux
Traut euch!
Neue Nachrichten
Werbung