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CVE-2015-3405

ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest …

Impact

ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and not #, which might allow remote attackers to obtain the value of generated MD5 keys via a brute force attack with the 93 possible keys.

Affected products

VendorProductAffected versions
NtpNtp
Versions 4.2.8, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4
DebianDebian Linux
Versions 7.0, 8.0
OpensuseSuse Linux Enterprise Server
Version 11.0
Opensuse ProjectSuse Linux Enterprise Desktop
Version 11.0
SuseSuse Linux Enterprise Server
Version 11.0
FedoraprojectFedora
Version 21
RedhatEnterprise Linux Desktop
Version 6.0
RedhatEnterprise Linux For Ibm Z Systems
Version 6.0
RedhatEnterprise Linux For Power Big Endian
Version 6.0
RedhatEnterprise Linux For Scientific Computing
Version 6.0
RedhatEnterprise Linux Server
Version 6.0
RedhatEnterprise Linux Server From Rhui 6
Version 6.0

Weakness classification

CWE-331

References