Insufficient Entropy Affecting ntp package, versions <1:4.2.6.p5+dfsg-7
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Test your applications- Snyk ID SNYK-DEBIAN11-NTP-518141
- published 9 Aug 2017
- disclosed 9 Aug 2017
Introduced: 9 Aug 2017
CVE-2015-3405 Open this link in a new tabHow to fix?
Upgrade Debian:11 ntp to version 1:4.2.6.p5+dfsg-7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2015-3405
- http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg
- https://bugs.ntp.org/show_bug.cgi?id=2797
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us
- http://www.debian.org/security/2015/dsa-3223
- http://www.debian.org/security/2015/dsa-3388
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.openwall.com/lists/oss-security/2015/04/23/14
- https://bugzilla.redhat.com/show_bug.cgi?id=1210324
- http://rhn.redhat.com/errata/RHSA-2015-1459.html
- http://rhn.redhat.com/errata/RHSA-2015-2231.html
- http://www.securityfocus.com/bid/74045
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-3405
- https://access.redhat.com/errata/RHSA-2015:1459
- https://access.redhat.com/errata/RHSA-2015:2231
- https://access.redhat.com/security/cve/CVE-2015-3405