7.9 High
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
7.5 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.973 High
EPSS
Percentile
99.9%
Issue Overview:
Command injection vulnerability in the DHCP client NetworkManager integration script:
A command injection flaw was found in the NetworkManager integration script included in the DHCP client packages in Amazon Linux 2. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol. (CVE-2018-1111)
Note: Amazon Linux 2 does not use NetworkManager by default, however it is recommended to install this update.
Affected Packages:
dhcp
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 dhcp to update your system.
New Packages:
src:
dhcp-4.2.5-68.amzn2.1.2.src
x86_64:
dhcp-4.2.5-68.amzn2.1.2.x86_64
dhclient-4.2.5-68.amzn2.1.2.x86_64
dhcp-common-4.2.5-68.amzn2.1.2.x86_64
dhcp-libs-4.2.5-68.amzn2.1.2.x86_64
dhcp-devel-4.2.5-68.amzn2.1.2.x86_64
dhcp-debuginfo-4.2.5-68.amzn2.1.2.x86_64
Red Hat: CVE-2018-1111
Mitre: CVE-2018-1111
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | x86_64 | dhcp | < 4.2.5-68.amzn2.1.2 | dhcp-4.2.5-68.amzn2.1.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | dhclient | < 4.2.5-68.amzn2.1.2 | dhclient-4.2.5-68.amzn2.1.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | dhcp-common | < 4.2.5-68.amzn2.1.2 | dhcp-common-4.2.5-68.amzn2.1.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | dhcp-libs | < 4.2.5-68.amzn2.1.2 | dhcp-libs-4.2.5-68.amzn2.1.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | dhcp-devel | < 4.2.5-68.amzn2.1.2 | dhcp-devel-4.2.5-68.amzn2.1.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | dhcp-debuginfo | < 4.2.5-68.amzn2.1.2 | dhcp-debuginfo-4.2.5-68.amzn2.1.2.x86_64.rpm |
7.9 High
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
7.5 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.973 High
EPSS
Percentile
99.9%