#VU6915 Denial of service in Wireshark - CVE-2017-9353

Vulnerability identifier: #VU6915

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-9353

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

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 in the IPv6 dissector due to improper validation of an IPv6 address. A remote attacker can inject a malformed packet epan/dissectors/packet-ipv6.c onto the wire or persuade the target user to read a malformed packet trace file and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Update to version 2.2.7 or later.

Vulnerable software versions

Wireshark: 2.2.0 - 2.2.6

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External links
https://www.wireshark.org/security/wnpa-sec-2017-33.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. However, proof of concept for this vulnerability is available.