CVE-2018-6836

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
Overview
  • CVE ID
  • CVE-2018-6836
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-02-08T07:29:01
  • Last Modified Date
  • 2020-08-24T17:37:01
Weakness Enumerations
CWE URL
CWE-763 http://cwe.mitre.org/data/definitions/763.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* 1 OR 2.4.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef Issue Tracking Patch
https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.c Patch
https://code.wireshark.org/review/#/c/25660/ Issue Tracking Patch
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397 Exploit Issue Tracking Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-6836
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6836
History
Created Old Value New Value Data Type Notes
2022-05-10 16:31:28 Added to TrackCVE
2022-12-03 01:54:02 2018-02-08T07:29Z 2018-02-08T07:29:01 CVE Published Date updated
2022-12-03 01:54:02 2020-08-24T17:37:01 CVE Modified Date updated
2022-12-03 01:54:02 Analyzed Vulnerability Status updated