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ubuntuUbuntuUSN-4563-2
HistoryApr 20, 2021 - 12:00 a.m.

NTP vulnerability

2021-04-2000:00:00
ubuntu.com
103

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.099 Low

EPSS

Percentile

94.8%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS

Packages

  • ntp - Network Time Protocol daemon and utility programs

Details

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).

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchntp< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchntp-dbgsym< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchntp-doc< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchntpdate< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchntpdate-dbgsym< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchsntp< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.10noarchsntp-dbgsym< 1:4.2.8p12+dfsg-3ubuntu4.20.10.1UNKNOWN
Ubuntu20.04noarchntp< 1:4.2.8p12+dfsg-3ubuntu4.20.04.1UNKNOWN
Ubuntu20.04noarchntp-dbgsym< 1:4.2.8p12+dfsg-3ubuntu4.20.04.1UNKNOWN
Ubuntu20.04noarchntp-doc< 1:4.2.8p12+dfsg-3ubuntu4.20.04.1UNKNOWN
Rows per page:
1-10 of 141

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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.099 Low

EPSS

Percentile

94.8%

JSON
Related for USN-4563-2
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