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CVE-2015-7702

Published: 22 October 2015

The crypto_xmit 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 (crash). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.

Notes

AuthorNote
mdeslaur
same commits as CVE-2015-7691
commits incorrectly state CVE-2014-9297

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
precise
Released (1:4.2.6.p3+dfsg-1ubuntu3.6)
trusty
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.5)
upstream Needs triage

vivid
Released (1:4.2.6.p5+dfsg-3ubuntu6.2)
wily
Released (1:4.2.6.p5+dfsg-3ubuntu8.1)
Patches:
upstream: https://github.com/ntp-project/ntp/commit/c4cd4aaf418f57f7225708a93bf48afb2bc9c1da
upstream: https://github.com/ntp-project/ntp/commit/c454d5defd5679947ed34b988c85bab6ed9066cf

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H