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Mandriva Linux Security Advisory MDVSA-2015:202
http://www.mandriva.com/en/support/security/
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Package : ntp
Date : April 10, 2015
Affected: Business Server 1.0, Business Server 2.0
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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.
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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
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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
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
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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
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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