7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
10 High
AI Score
Confidence
High
0.031 Low
EPSS
Percentile
91.1%
Issue Overview:
The ntpq and ntpdc command-line utilities that are part of ntp package are vulnerable to stack-based buffer overflow via crafted hostname. Applications using these vulnerable utilities with an untrusted input may be potentially exploited, resulting in a crash or arbitrary code execution under privileges of that application.(CVE-2018-12327)
Affected Packages:
ntp
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update ntp to update your system.
New Packages:
aarch64:
ntp-4.2.6p5-29.amzn2.0.1.aarch64
ntpdate-4.2.6p5-29.amzn2.0.1.aarch64
sntp-4.2.6p5-29.amzn2.0.1.aarch64
ntp-debuginfo-4.2.6p5-29.amzn2.0.1.aarch64
i686:
ntp-4.2.6p5-29.amzn2.0.1.i686
ntpdate-4.2.6p5-29.amzn2.0.1.i686
sntp-4.2.6p5-29.amzn2.0.1.i686
ntp-debuginfo-4.2.6p5-29.amzn2.0.1.i686
noarch:
ntp-perl-4.2.6p5-29.amzn2.0.1.noarch
ntp-doc-4.2.6p5-29.amzn2.0.1.noarch
src:
ntp-4.2.6p5-29.amzn2.0.1.src
x86_64:
ntp-4.2.6p5-29.amzn2.0.1.x86_64
ntpdate-4.2.6p5-29.amzn2.0.1.x86_64
sntp-4.2.6p5-29.amzn2.0.1.x86_64
ntp-debuginfo-4.2.6p5-29.amzn2.0.1.x86_64
Red Hat: CVE-2018-12327
Mitre: CVE-2018-12327
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | ntp | < 4.2.6p5-29.amzn2.0.1 | ntp-4.2.6p5-29.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | aarch64 | ntpdate | < 4.2.6p5-29.amzn2.0.1 | ntpdate-4.2.6p5-29.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | aarch64 | sntp | < 4.2.6p5-29.amzn2.0.1 | sntp-4.2.6p5-29.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | aarch64 | ntp-debuginfo | < 4.2.6p5-29.amzn2.0.1 | ntp-debuginfo-4.2.6p5-29.amzn2.0.1.aarch64.rpm |
Amazon Linux | 2 | i686 | ntp | < 4.2.6p5-29.amzn2.0.1 | ntp-4.2.6p5-29.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | i686 | ntpdate | < 4.2.6p5-29.amzn2.0.1 | ntpdate-4.2.6p5-29.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | i686 | sntp | < 4.2.6p5-29.amzn2.0.1 | sntp-4.2.6p5-29.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | i686 | ntp-debuginfo | < 4.2.6p5-29.amzn2.0.1 | ntp-debuginfo-4.2.6p5-29.amzn2.0.1.i686.rpm |
Amazon Linux | 2 | noarch | ntp-perl | < 4.2.6p5-29.amzn2.0.1 | ntp-perl-4.2.6p5-29.amzn2.0.1.noarch.rpm |
Amazon Linux | 2 | noarch | ntp-doc | < 4.2.6p5-29.amzn2.0.1 | ntp-doc-4.2.6p5-29.amzn2.0.1.noarch.rpm |
7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
10 High
AI Score
Confidence
High
0.031 Low
EPSS
Percentile
91.1%