5.8 Medium
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.3%
Issue Overview:
It was discovered that systemd-network does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to an integer underflow that can be used to produce an heap-based buffer overflow. A malicious host on the same network segment as the victim’s one may advertise itself as a DHCPv6 server and exploit this flaw to cause a Denial of Service or potentially gain code execution on the victim’s machine.(CVE-2018-15688)
Affected Packages:
NetworkManager
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 NetworkManager to update your system.
New Packages:
aarch64:
NetworkManager-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-adsl-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-bluetooth-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-team-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-wifi-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-wwan-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-ppp-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-glib-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-glib-devel-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-libnm-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-libnm-devel-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-tui-1.12.0-8.amzn2.0.2.aarch64
NetworkManager-debuginfo-1.12.0-8.amzn2.0.2.aarch64
i686:
NetworkManager-1.12.0-8.amzn2.0.2.i686
NetworkManager-adsl-1.12.0-8.amzn2.0.2.i686
NetworkManager-bluetooth-1.12.0-8.amzn2.0.2.i686
NetworkManager-team-1.12.0-8.amzn2.0.2.i686
NetworkManager-wifi-1.12.0-8.amzn2.0.2.i686
NetworkManager-wwan-1.12.0-8.amzn2.0.2.i686
NetworkManager-ppp-1.12.0-8.amzn2.0.2.i686
NetworkManager-glib-1.12.0-8.amzn2.0.2.i686
NetworkManager-glib-devel-1.12.0-8.amzn2.0.2.i686
NetworkManager-libnm-1.12.0-8.amzn2.0.2.i686
NetworkManager-libnm-devel-1.12.0-8.amzn2.0.2.i686
NetworkManager-tui-1.12.0-8.amzn2.0.2.i686
NetworkManager-debuginfo-1.12.0-8.amzn2.0.2.i686
noarch:
NetworkManager-config-server-1.12.0-8.amzn2.0.2.noarch
NetworkManager-dispatcher-routing-rules-1.12.0-8.amzn2.0.2.noarch
src:
NetworkManager-1.12.0-8.amzn2.0.2.src
x86_64:
NetworkManager-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-adsl-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-bluetooth-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-team-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-wifi-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-wwan-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-ppp-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-glib-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-glib-devel-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-libnm-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-libnm-devel-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-tui-1.12.0-8.amzn2.0.2.x86_64
NetworkManager-debuginfo-1.12.0-8.amzn2.0.2.x86_64
Red Hat: CVE-2018-15688
Mitre: CVE-2018-15688
5.8 Medium
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.3%