CVE-2018-5732

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
Overview
  • CVE ID
  • CVE-2018-5732
  • Assigner
  • security-officer@isc.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-10-09T16:15:13
  • Last Modified Date
  • 2020-01-09T21:14:41
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* 1 OR 4.1.0 4.1.2
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* 1 OR 4.2.0 4.2.8
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* 1 OR 4.3.0 4.3.6
cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12-p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r13:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://kb.isc.org/docs/aa-01565 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-5732
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5732
History
Created Old Value New Value Data Type Notes
2022-05-10 16:54:10 Added to TrackCVE
2022-12-04 03:59:55 2019-10-09T16:15Z 2019-10-09T16:15:13 CVE Published Date updated
2022-12-04 03:59:55 2020-01-09T21:14:41 CVE Modified Date updated
2022-12-04 03:59:55 Analyzed Vulnerability Status updated