CVE-2018-6836

HIGH

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.

References

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

Details

Source: MITRE

Published: 2018-02-08

Updated: 2018-03-10

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL