Vulnerability identifier: #VU8073

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13766

CWE-ID: CWE-787

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 cause DoS condition on the target system.

The weakness exists due to out-of-bounds write in the Profinet I/O dissector. A remote attacker can inject a malformed packet onto the wire, trigger Wireshark to consume excessive CPU resources and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
The vulnerability is addressed in the following versions: 2.2.9 or 2.4.1.

Vulnerable software versions

Wireshark: 2.4.0, 2.2.0 - 2.2.8

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External links
http://www.wireshark.org/security/wnpa-sec-2017-39.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.