PT-2018-1048 · Isc+5 · Isc Dhcp+5

Published 2017-08-31 · Updated 2024-06-15 · CVE-2018-5732

Positive Technologies (AI Summary)

CVSS v2.0

9.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ISC DHCP versions 4.1.0 through 4.1-ESV-R15 ISC DHCP versions 4.2.0 through 4.2.8 ISC DHCP versions 4.3.0 through 4.3.6 ISC DHCP versions 4.4.0

Description The issue is related to a buffer overflow in the dhclient due to insufficient bounds checking of a buffer used for processing DHCP options. This can be exploited by a malicious server or an entity masquerading as a server, which sends a response containing a specially constructed options section, potentially causing a crash or allowing for the execution of arbitrary code.

Recommendations For ISC DHCP versions 4.1.0 through 4.1-ESV-R15, update to a version outside of this range to resolve the issue. For ISC DHCP versions 4.2.0 through 4.2.8, update to a version outside of this range to resolve the issue. For ISC DHCP versions 4.3.0 through 4.3.6, update to a version outside of this range to resolve the issue. For ISC DHCP version 4.4.0, update to a version outside of this range to resolve the issue.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-2138

ALT-PU-2018-1300

BDU:2018-00356

CESA-2018_0469

CESA-2018_0483

CVE-2018-5732

DLA-1313-1

DSA-4133-1

MGASA-2018-0410

OPENSUSE-SU-2024:10715-1

RHSA-2018:0469

RHSA-2018:0483

RHSA-2018_0469

RHSA-2018_0483

SUSE-SU-2018:0810-1

SUSE-SU-2018:0810-2

SUSE-SU-2018:0812-1

SUSE-SU-2018_0810-1

SUSE-SU-2018_0810-2

SUSE-SU-2018_0812-1

USN-3586-1

USN-3586-2

Affected Products

Alt Linux

Centos

Isc Dhcp

Red Hat

Suse

Ubuntu

References · 78

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5733 · Security Note
• https://kb.isc.org/docs/aa-01565 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-3144 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-5733 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3144 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:0810-2 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-00356 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-5732 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-5732 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0410.html · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2018-5732 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8605 · Security Note
• https://security-tracker.debian.org/tracker/source-package/isc-dhcp · Vendor Advisory
• https://osv.dev/vulnerability/USN-3586-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-5732 · Vendor Advisory