Login
Login-Name Passwort


 
Newsletter
Werbung

Sicherheit: Mehrere Probleme in NTP
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in NTP
ID: MDVSA-2015:140
Distribution: Mandriva
Plattformen: Mandriva Business Server 2.0
Datum: So, 29. März 2015, 14:13
Referenzen: http://advisories.mageia.org/MGASA-2014-0541.html
http://advisories.mageia.org/MGASA-2015-0063.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9293
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9294
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9295
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9296
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9297
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9298

Originalnachricht

This is a multi-part message in MIME format...

------------=_1427628943-10360-40

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2015:140
http://www.mandriva.com/en/support/security/
_______________________________________________________________________

Package : ntp
Date : March 29, 2015
Affected: Business Server 2.0
_______________________________________________________________________

Problem Description:

Updated ntp packages fix security vulnerabilities:

If no authentication key is defined in the ntp.conf file, a
cryptographically-weak default key is generated (CVE-2014-9293).

ntp-keygen before 4.2.7p230 uses a non-cryptographic random number
generator with a weak seed to generate symmetric keys (CVE-2014-9294).

A remote unauthenticated attacker may craft special packets that
trigger buffer overflows in the ntpd functions crypto_recv() (when
using autokey authentication), ctl_putdata(), and configure(). The
resulting buffer overflows may be exploited to allow arbitrary
malicious code to be executed with the privilege of the ntpd process
(CVE-2014-9295).

A section of code in ntpd handling a rare error is missing a return
statement, therefore processing did not stop when the error was
encountered. This situation may be exploitable by an attacker
(CVE-2014-9296).

Stephen Roettger of the Google Security Team, Sebastian Krahmer of
the SUSE Security Team and Harlan Stenn of Network Time Foundation
discovered that the length value in extension fields is not properly
validated in several code paths in ntp_crypto.c, which could lead to
information leakage or denial of service (CVE-2014-9297).

Stephen Roettger of the Google Security Team reported that ACLs based
on IPv6 ::1 (localhost) addresses can be bypassed (CVE-2014-9298).

The ntp package has been patched to fix these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9293
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9294
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9295
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9296
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9297
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9298
http://advisories.mageia.org/MGASA-2014-0541.html
http://advisories.mageia.org/MGASA-2015-0063.html
_______________________________________________________________________

Updated Packages:

Mandriva Business Server 2/X86_64:
8f7d14b95c55bd1de7230cff0c8ea9d7 mbs2/x86_64/ntp-4.2.6p5-16.1.mbs2.x86_64.rpm
09063ab11459b1f935809b37c742ff12
mbs2/x86_64/ntp-client-4.2.6p5-16.1.mbs2.x86_64.rpm
7a0d0eca35911d9f15b76b474c5512cf
mbs2/x86_64/ntp-doc-4.2.6p5-16.1.mbs2.noarch.rpm
cb0371050702950084ff633ea45c2c5c mbs2/SRPMS/ntp-4.2.6p5-16.1.mbs2.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>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iD8DBQFVF9K3mqjQ0CJFipgRAn26AJwInkxLvDh/Gbb3uYRz9IjuaSK8+ACgiM1Z
rou2syvF1hyhVhxh7M5sv3c=
=uncU
-----END PGP SIGNATURE-----


------------=_1427628943-10360-40
Content-Type: text/plain; charset="UTF-8";
name="message-footer.txt"
Content-Disposition: inline; filename="message-footer.txt"
Content-Transfer-Encoding: 8bit

To unsubscribe, send a email to sympa@mandrivalinux.org
with this subject : unsubscribe security-announce
_______________________________________________________
Want to buy your Pack or Services from Mandriva?
Go to http://store.mandriva.com
_______________________________________________________


------------=_1427628943-10360-40--
Pro-Linux
Traut euch!
Neue Nachrichten
Werbung