bugtraq - [ MDVSA-2015:202 ] ntp

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Date: Fri, 10 Apr 2015 13:20:00 +0200
From: security@...driva.com
To: bugtraq@...urityfocus.com
Subject: [ MDVSA-2015:202 ] ntp

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 _______________________________________________________________________

 Mandriva Linux Security Advisory                         MDVSA-2015:202
 http://www.mandriva.com/en/support/security/
 _______________________________________________________________________

 Package : ntp
 Date    : April 10, 2015
 Affected: Business Server 1.0, Business Server 2.0
 _______________________________________________________________________

 Problem Description:

 Multiple vulnerabilities has been found and corrected in ntp:
 
 The symmetric-key feature in the receive function in ntp_proto.c
 in ntpd in NTP before 4.2.8p2 requires a correct MAC only if the MAC
 field has a nonzero length, which makes it easier for man-in-the-middle
 attackers to spoof packets by omitting the MAC (CVE-2015-1798).
 
 The symmetric-key feature in the receive function in ntp_proto.c
 in ntpd in NTP before 4.2.8p2 performs state-variable updates
 upon receiving certain invalid packets, which makes it easier
 for man-in-the-middle attackers to cause a denial of service
 (synchronization loss) by spoofing the source IP address of a peer
 (CVE-2015-1799).
 
 The updated packages provides a solution for these security issues.
 _______________________________________________________________________

 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1798
 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1799
 http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
 _______________________________________________________________________

 Updated Packages:

 Mandriva Business Server 1/X86_64:
 b0f98e6b8700e3e3413582fe28d1ba06  mbs1/x86_64/ntp-4.2.6p5-8.4.mbs1.x86_64.rpm
 d864780718c95368bf9ec81643e35e5d  mbs1/x86_64/ntp-client-4.2.6p5-8.4.mbs1.x86_64.rpm
 6f457df52d46fb8e6b0fe44aead752eb  mbs1/x86_64/ntp-doc-4.2.6p5-8.4.mbs1.x86_64.rpm 
 b4bff3de733ea6d2839a77a9211ce02b  mbs1/SRPMS/ntp-4.2.6p5-8.4.mbs1.src.rpm

 Mandriva Business Server 2/X86_64:
 e9ac2f3465bcc50199aef8a4d553927f  mbs2/x86_64/ntp-4.2.6p5-16.3.mbs2.x86_64.rpm
 cf2970c3c56efbfa84f964532ad64544  mbs2/x86_64/ntp-client-4.2.6p5-16.3.mbs2.x86_64.rpm
 1ae1b1d3c2e7bdea25c01c33652b6169  mbs2/x86_64/ntp-doc-4.2.6p5-16.3.mbs2.noarch.rpm 
 d250433009fd187361bda6338dc5eede  mbs2/SRPMS/ntp-4.2.6p5-16.3.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>
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