CVE-2018-6836 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397 https://code.wireshark.org/review//c/25660/ https://code.wireshark.org/review//c/25660/2/wiretap/netmon.c https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8