CVE-2019-8936
Published: 15 May 2019
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).
Notes
Author | Note |
---|---|
leosilva | issue was introduced with the fix from CVE-2018-7182 |
Priority
Status
Package | Release | Status |
---|---|---|
ntp Launchpad, Ubuntu, Debian |
hirsute |
Released
(1:4.2.8p12+dfsg-3ubuntu4.1)
|
upstream |
Released
(1:4.2.8p13-1)
|
|
groovy |
Released
(1:4.2.8p12+dfsg-3ubuntu4.20.10.1)
|
|
focal |
Released
(1:4.2.8p12+dfsg-3ubuntu4.20.04.1)
|
|
bionic |
Released
(1:4.2.8p10+dfsg-5ubuntu7.3)
|
|
trusty |
Not vulnerable
|
|
xenial |
Not vulnerable
|
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
impish |
Released
(1:4.2.8p12+dfsg-3ubuntu6)
|
|
jammy |
Released
(1:4.2.8p12+dfsg-3ubuntu6)
|
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8936
- http://bugs.ntp.org/show_bug.cgi?id=3565
- http://bk.ntp.org/ntp-stable/ntpd/ntp_control.c?PAGE=diffs&REV=5c8106e7wWtXdh0lzg1ytlWribBTcQ
- https://ubuntu.com/security/notices/USN-4563-1
- https://ubuntu.com/security/notices/USN-4563-2
- NVD
- Launchpad
- Debian