CVE-2018-6836

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 v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	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%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef

Configurations

Configuration 1 (hide)

cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*

History

07 Nov 2023, 03:00

Type	Values Removed	Values Added
References	{'url': 'https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef', 'name': 'https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef', 'tags': ['Issue Tracking', 'Patch'], 'refsource': 'MISC'}	() https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef -

Information

Published : 2018-02-08 07:29

Updated : 2023-12-10 12:30

NVD link : CVE-2018-6836

Mitre link : CVE-2018-6836

CVE.ORG link : CVE-2018-6836

JSON object : View

Products Affected

wireshark

wireshark

CWE

CWE-763

Release of Invalid Pointer or Reference

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