Vulnerability CVE-2015-7855
Published: 2017-08-07

Description:
The decodenetnum function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (assertion failure) via a 6 or mode 7 packet containing a long data value.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
NTP 4.2.8p3 Denial Of Service Exploit
Magnus Klaaborg ...
29.11.2016

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
NTP -> NTP 

 References:
http://support.ntp.org/bin/view/Main/NtpBug2922
http://www.debian.org/security/2015/dsa-3388
http://www.securityfocus.com/bid/77283
http://www.securitytracker.com/id/1033951
https://bugzilla.redhat.com/show_bug.cgi?id=1274264
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839
https://security.gentoo.org/glsa/201607-15
https://www.exploit-db.com/exploits/40840/
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