Bug 1852114

Summary:	ntp: memory leak with CMAC keys can lead to DoS
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dmoppert, linville, mlichvar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-08 01:51:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1850531, 1852115
Bug Blocks:	1852116

Description Guilherme de Almeida Suckevicz 2020-06-29 18:45:01 UTC

ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.

References:
https://support.ntp.org/bin/view/Main/NtpBug3661
https://support.ntp.org/bin/view/Main/SecurityNotice#June_2020_ntp_4_2_8p15_NTP_Relea

Comment 1 Guilherme de Almeida Suckevicz 2020-06-29 18:45:17 UTC

Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1852115]

Comment 3 Doran Moppert 2020-07-08 01:51:18 UTC


*** This bug has been marked as a duplicate of bug 1850530 ***