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CVE-2015-7975

Published: 31 December 2015

The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).

Notes

AuthorNote
mdeslaur
introduced in 4.2.8 by
https://github.com/ntp-project/ntp/commit/be565bf3c6a5badd4a6ce2f336476d1e1dd98915

Priority

Negligible

Cvss 3 Severity Score

6.2

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
precise Not vulnerable
(1:4.2.6.p3+dfsg-1ubuntu3.9)
upstream
Released (4.2.8p6)
wily Not vulnerable
(1:4.2.6.p5+dfsg-3ubuntu8.2)
xenial
Released (1:4.2.8p4+dfsg-3ubuntu5.3)
trusty Not vulnerable
(1:4.2.6.p5+dfsg-3ubuntu2.14.04.8)
vivid Ignored
(end of life)
Patches:
upstream: https://github.com/ntp-project/ntp/commit/12f1323d18c8d74eb14fb5ac5574183d779794c5

Severity score breakdown

Parameter Value
Base score 6.2
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H