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CVE-2015-7978

Published: 31 December 2015

NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.

Notes

AuthorNote
mdeslaur
same patch as CVE-2015-7977

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
precise
Released (1:4.2.6.p3+dfsg-1ubuntu3.11)
trusty
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.10)
upstream
Released (4.2.8p6)
vivid Ignored
(end of life)
wily Ignored
(end of life)
xenial
Released (1:4.2.8p4+dfsg-3ubuntu5.3)
yakkety Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu6)
zesty Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu6)
Patches:
upstream: https://github.com/ntp-project/ntp/commit/8a0c765f3c47633fa262356b0818788d1cf249b1

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H