Login
Newsletter
Werbung

Sicherheit: Zwei Probleme in OpenSSH
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in OpenSSH
ID: USN-2710-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.04
Datum: Sa, 15. August 2015, 12:09
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5600
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5352
Applikationen: OpenSSH

Originalnachricht

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============6561774179045014345==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="SJeMV1ukDNW83gsL78bMOgu7Jjishdnb2"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--SJeMV1ukDNW83gsL78bMOgu7Jjishdnb2
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-2710-1
August 14, 2015

openssh vulnerabilities
==========================================================================

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

- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in OpenSSH.

Software Description:
- openssh: secure shell (SSH) for secure access to remote machines

Details:

Moritz Jodeit discovered that OpenSSH incorrectly handled usernames when
using PAM authentication. If an additional vulnerability were discovered in
the OpenSSH unprivileged child process, this issue could allow a remote
attacker to perform user impersonation. (CVE number pending)

Moritz Jodeit discovered that OpenSSH incorrectly handled context memory
when using PAM authentication. If an additional vulnerability were
discovered in the OpenSSH unprivileged child process, this issue could
allow a remote attacker to bypass authentication or possibly execute
arbitrary code. (CVE number pending)

Jann Horn discovered that OpenSSH incorrectly handled time windows for
X connections. A remote attacker could use this issue to bypass certain
access restrictions. (CVE-2015-5352)

It was discovered that OpenSSH incorrectly handled keyboard-interactive
authentication. In a non-default configuration, a remote attacker could
possibly use this issue to perform a brute-force password attack.
(CVE-2015-5600)

Update instructions:

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

Ubuntu 15.04:
openssh-server 1:6.7p1-5ubuntu1.2

Ubuntu 14.04 LTS:
openssh-server 1:6.6p1-2ubuntu2.2

Ubuntu 12.04 LTS:
openssh-server 1:5.9p1-5ubuntu1.6

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

References:
http://www.ubuntu.com/usn/usn-2710-1
CVE-2015-5352, CVE-2015-5600

Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:6.7p1-5ubuntu1.2
https://launchpad.net/ubuntu/+source/openssh/1:6.6p1-2ubuntu2.2
https://launchpad.net/ubuntu/+source/openssh/1:5.9p1-5ubuntu1.6



--SJeMV1ukDNW83gsL78bMOgu7Jjishdnb2
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

iQIcBAEBCgAGBQJVzgw+AAoJEGVp2FWnRL6T9TEQAJVdUijqSf1Eo/Q6yKVuNcCP
Sg5UoW475K+wZMpQBbfKD83lUQdsT/+giCYM8wD7tFcyxub+fPee492t4xbY4DLt
nTK9ClS+j9p1bQigU+IUMa3S2XTnbCqGFdjz3W73qKzPl8jjrpxx51adQUPA6+uv
1yE00jpSPyNcilDLi50oq8Cb+3B0R3kYS5sfputr7phSd4QiceCel2uaFPsuMTIX
9W0CIZOfhKf6oth7wZcv2oO5T+RB8+Wma2fWXiAMD8U12CQpNiUbMaFoUgf2uvCo
Zs4ecLpHYHULIkH+1AM1YFcoXaP31TLG6huBe6RtL7n+mcbeNdrLHvEKRF2JxywA
JOPhlN70sAWIugSrDnU/Nnqkd9BPOGnwkLXmyVY+yL7CXZE3v8TPHP7L/0p9IvNA
M2dkKLUOb53poF265T8ktPdPECYc5xw+pQ/DeZrrw6cLBQEYJU7IADDZqwOdxvQf
Q/uMjgXV6n9Fag276HzEZXkRWk5eREVr1A8jeoGNkcod+Ib4A8MAdPwEIQGyzRRD
V1QB722W+qIJkzFqwIWIwHwYL+XBAee0FM8cPgxcJ+mmxtL/bsMuQH9PURS9sEry
gGFS1C09yxMwjMRg+VfLyJoKLNkgQlY4JEILvlOsrZmFjaIgZ6WQHrDvWm8kwTzz
mNHz1zg4obzdH3A+Ot8D
=U1GB
-----END PGP SIGNATURE-----

--SJeMV1ukDNW83gsL78bMOgu7Jjishdnb2--


--===============6561774179045014345==
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

--===============6561774179045014345==--
Pro-Linux
Gewinnspiel
Neue Nachrichten
Werbung