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ubuntuUbuntuUSN-3707-1
HistoryJul 09, 2018 - 12:00 a.m.

NTP vulnerabilities

2018-07-0900:00:00
ubuntu.com
81

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.6 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.779 High

EPSS

Percentile

98.2%

Releases

  • Ubuntu 18.04 ESM
  • Ubuntu 17.10
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • ntp - Network Time Protocol daemon and utility programs

Details

Yihan Lian discovered that NTP incorrectly handled certain malformed mode 6
packets. A remote attacker could possibly use this issue to cause ntpd to
crash, resulting in a denial of service. This issue only affected Ubuntu
17.10 and Ubuntu 18.04 LTS. (CVE-2018-7182)

Michael Macnair discovered that NTP incorrectly handled certain responses.
A remote attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-7183)

Miroslav Lichvar discovered that NTP incorrectly handled certain
zero-origin timestamps. A remote attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu
18.04 LTS. (CVE-2018-7184)

Miroslav Lichvar discovered that NTP incorrectly handled certain
zero-origin timestamps. A remote attacker could possibly use this issue to
cause a denial of service. (CVE-2018-7185)

OSVersionArchitecturePackageVersionFilename
Ubuntu18.04noarchntp< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchntp-dbgsym< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchntp-doc< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchntpdate< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchntpdate-dbgsym< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchsntp< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu18.04noarchsntp-dbgsym< 1:4.2.8p10+dfsg-5ubuntu7.1UNKNOWN
Ubuntu17.10noarchntp< 1:4.2.8p10+dfsg-5ubuntu3.3UNKNOWN
Ubuntu17.10noarchntp-dbgsym< 1:4.2.8p10+dfsg-5ubuntu3.3UNKNOWN
Ubuntu17.10noarchntp-doc< 1:4.2.8p10+dfsg-5ubuntu3.3UNKNOWN
Rows per page:
1-10 of 231

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.6 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.779 High

EPSS

Percentile

98.2%