Home / vulnerabilities Mandriva Linux Security Advisory 2015-140
Posted on 31 March 2015
Source : packetstormsecurity.org Link
-----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-----
