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kasperskyKaspersky LabKLA12408
HistoryDec 29, 2021 - 12:00 a.m.

KLA12408 DoS vulnerability in Wireshark

2021-12-2900:00:00
Kaspersky Lab
threats.kaspersky.com
63
wireshark
dos
vulnerability
gryphon dissector crash
kaspersky
cve-2021-4186
update
impacts
affected products

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.5

Confidence

High

EPSS

0.004

Percentile

72.3%

Denial of service vulnerability was found in Wireshark. Malicious users can exploit this vulnerability to cause denial of service.

Original advisories

Gryphon dissector crash

Related products

Wireshark

CVE list

CVE-2021-4186 critical

Solution

Update to the latest version

Download Wireshark

Impacts

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

  • Wireshark 3.4.x earlier than 3.4.11Wireshark 3.6.x earlier than 3.6.0

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.5

Confidence

High

EPSS

0.004

Percentile

72.3%