- Vulnerability/
- USN-4563-2
USN-4563-2: NTP vulnerability
First published: Tue Apr 20 2021(Updated: )
USN-4563-1 fixed a vulnerability in NTP. This update provides the corresponding update for Ubuntu 20.04 LTS and Ubuntu 20.10. Original advisory details: 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).
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/ntp | <1:4.2.8p12+dfsg-3ubuntu4.20.10.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.10.1 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/ntpdate | <1:4.2.8p12+dfsg-3ubuntu4.20.10.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.10.1 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/sntp | <1:4.2.8p12+dfsg-3ubuntu4.20.10.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.10.1 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/ntp | <1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/ntpdate | <1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/sntp | <1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 |
| Ubuntu Ubuntu | =20.04 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this NTP vulnerability?
The vulnerability ID is USN-4563-2.
What is the severity of USN-4563-2?
The severity of USN-4563-2 is not specified.
What software is affected by USN-4563-2?
The affected software includes NTP, ntpdate, and sntp.
What versions of Ubuntu are affected by USN-4563-2?
The Ubuntu versions affected are 20.04 and 20.10.
How can I fix the USN-4563-2 vulnerability?
To fix the vulnerability, update the affected software packages to at least version 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 for Ubuntu 20.04 and version 1:4.2.8p12+dfsg-3ubuntu4.20.10.1 for Ubuntu 20.10.
- agent/severity
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/usn
- source/Ubuntu
- anchor-related/USN-4563-1
- agent/software-canonical-lookup
- agent/references
- agent/title
- agent/event
- agent/description
- agent/tags
- agent/trending
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/20.10
- version/ubuntu ubuntu/20.04