CVE-2015-3405

7.5 HIGH

Published: August 09, 2017 Modified: May 13, 2026

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg

Source: secalert@redhat.com

Third Party Advisory Vendor Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html

Source: secalert@redhat.com

Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html

Source: secalert@redhat.com

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2015-1459.html

Source: secalert@redhat.com

Third Party Advisory VDB Entry

http://rhn.redhat.com/errata/RHSA-2015-2231.html

Source: secalert@redhat.com

Third Party Advisory VDB Entry

http://www.debian.org/security/2015/dsa-3223

Source: secalert@redhat.com

Third Party Advisory

http://www.debian.org/security/2015/dsa-3388

Source: secalert@redhat.com

Third Party Advisory

http://www.openwall.com/lists/oss-security/2015/04/23/14

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html

Source: secalert@redhat.com

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: secalert@redhat.com

http://www.securityfocus.com/bid/74045

Source: secalert@redhat.com

Third Party Advisory VDB Entry

https://bugs.ntp.org/show_bug.cgi?id=2797

Source: secalert@redhat.com

Issue Tracking Third Party Advisory Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1210324

Source: secalert@redhat.com

Issue Tracking Patch Third Party Advisory VDB Entry

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us

Source: secalert@redhat.com

http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg