Multiple vulnerabilities in Wireshark

Published: 2021-01-30 | Updated: 2021-02-01

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-22173 CVE-2021-22174
CWE-ID	CWE-401 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Wireshark Server applications / IDS/IPS systems, Firewalls and proxy servers
Vendor	Wireshark.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated: 01.02.2021

Assigned CVE-IDs.

1) Memory leak

EUVDB-ID: #VU50148

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22173

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

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

CPE2.3

cpe:2.3:a:wireshark_org:wireshark:3.4.2:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU50149