CVE-2019-8936

Publication date 15 May 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

NTP through 4.2.8p12 has a NULL Pointer Dereference.

From the Ubuntu Security Team

It was discovered that the fix for CVE-2018-7182 introduced a NULL pointer dereference into NTP. An attacker could use this vulnerability to cause a denial of service (crash).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ntp	22.04 LTS jammy	Fixed 1:4.2.8p12+dfsg-3ubuntu6
	21.10 impish	Fixed 1:4.2.8p12+dfsg-3ubuntu6
	21.04 hirsute	Fixed 1:4.2.8p12+dfsg-3ubuntu4.1
	20.10 groovy	Fixed 1:4.2.8p12+dfsg-3ubuntu4.20.10.1
	20.04 LTS focal	Fixed 1:4.2.8p12+dfsg-3ubuntu4.20.04.1
	19.10 eoan	Ignored
	19.04 disco	Ignored
	18.10 cosmic	Ignored
	18.04 LTS bionic	Fixed 1:4.2.8p10+dfsg-5ubuntu7.3
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

leosilva

issue was introduced with the fix from CVE-2018-7182

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H