#VU81495 Memory leak in Wireshark - CVE-2023-5371

Vulnerability identifier: #VU81495

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-5371

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 a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the RTPS dissector. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 3.6.0 - 3.6.16, 4.0.0 - 4.0.8

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External links
https://gitlab.com/wireshark/wireshark/-/issues/19322
https://www.wireshark.org/security/wnpa-sec-2023-27.html

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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.