Vulnerability identifier: #VU50148

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22173

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Wireshark.org

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak within USB HID dissector. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Wireshark: 3.4.0 - 3.4.2

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External links
http://www.wireshark.org/security/wnpa-sec-2021-01.html
http://gitlab.com/wireshark/wireshark/-/issues/17124

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.