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Sicherheit: Zwei Probleme in openssh
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in openssh
ID: MDVSA-2013:022
Distribution: Mandriva
Plattformen: Mandriva Enterprise Server 5.0
Datum: Mi, 13. März 2013, 15:27
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-5107
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0814
Applikationen: OpenSSH

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2013:022
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : openssh
Date : March 13, 2013
Affected: Enterprise Server 5.0
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities has been found and corrected in openssh:

The auth_parse_options function in auth-options.c in sshd in OpenSSH
before 5.7 provides debug messages containing authorized_keys command
options, which allows remote authenticated users to obtain potentially
sensitive information by reading these messages, as demonstrated by
the shared user account required by Gitolite. NOTE: this can cross
privilege boundaries because a user account may intentionally have no
shell or filesystem access, and therefore may have no supported way to
read an authorized_keys file in its own home directory (CVE-2012-0814).

The default configuration of OpenSSH through 6.1 enforces a fixed
time limit between establishing a TCP connection and completing a
login, which makes it easier for remote attackers to cause a denial
of service (connection-slot exhaustion) by periodically making many
new TCP connections (CVE-2010-5107).

The updated packages have been patched to correct these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-5107
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0814
_______________________________________________________________________

Updated Packages:

Mandriva Enterprise Server 5:
d4dc59e94c2f0f4ca4ed3d29c05afd9d
mes5/i586/openssh-5.1p1-2.3mdvmes5.2.i586.rpm
6bb053a5d82451594d433c0059c5f7a7
mes5/i586/openssh-askpass-5.1p1-2.3mdvmes5.2.i586.rpm
cc26585ed65704d2fa6c0bcb102953c7
mes5/i586/openssh-askpass-common-5.1p1-2.3mdvmes5.2.i586.rpm
06ded6e5614c7a188a676550934e98bb
mes5/i586/openssh-askpass-gnome-5.1p1-2.3mdvmes5.2.i586.rpm
860932e1a599ec68a150879b9c9abe52
mes5/i586/openssh-clients-5.1p1-2.3mdvmes5.2.i586.rpm
fe26afea6473e680a45979a904bb7e3d
mes5/i586/openssh-server-5.1p1-2.3mdvmes5.2.i586.rpm
baa4beb7bfb76b7706166e7870ddd210
mes5/SRPMS/openssh-5.1p1-2.3mdvmes5.2.src.rpm

Mandriva Enterprise Server 5/X86_64:
1c43725b46c279b7295c16e0fb9f43bf
mes5/x86_64/openssh-5.1p1-2.3mdvmes5.2.x86_64.rpm
d0231e13471148dfed86f75c4f99a2d0
mes5/x86_64/openssh-askpass-5.1p1-2.3mdvmes5.2.x86_64.rpm
2c06080b369ab13a9c95df47336aeb13
mes5/x86_64/openssh-askpass-common-5.1p1-2.3mdvmes5.2.x86_64.rpm
9fc99fb86e43c00139329787c7b3829d
mes5/x86_64/openssh-askpass-gnome-5.1p1-2.3mdvmes5.2.x86_64.rpm
63621dfc8b9c4bf731711af418ea5c5f
mes5/x86_64/openssh-clients-5.1p1-2.3mdvmes5.2.x86_64.rpm
ea5653a3e6d790ce02f11fbcd722801d
mes5/x86_64/openssh-server-5.1p1-2.3mdvmes5.2.x86_64.rpm
baa4beb7bfb76b7706166e7870ddd210
mes5/SRPMS/openssh-5.1p1-2.3mdvmes5.2.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
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Go to http://store.mandriva.com
_______________________________________________________


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