National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-6836 Detail

Current 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.

Source:  MITRE
Description Last Modified:  02/08/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397 Exploit Issue Tracking Third Party Advisory
https://code.wireshark.org/review/#/c/25660/ Issue Tracking Patch
https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.c Patch
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef Issue Tracking Patch

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.3

Configuration 1
OR
cpe:/a:wireshark:wireshark    versions up to (including) 2.4.4

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6836
NVD Published Date:
02/08/2018
NVD Last Modified:
03/10/2018