#VU10737 Infinite loop in Wireshark - CVE-2018-7323

Vulnerability identifier: #VU10737

Vulnerability risk: Low

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:Clear]

CVE-ID: CVE-2018-7323

CWE-ID: CWE-835

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 a calculated length was not monotonically increasing. A remote attacker can trigger an infinite loop in epan/dissectors/packet-wccp.c and perform a denial of service (DoS) attack.

Mitigation
Update to version 2.2.13, 2.4.5.

Vulnerable software versions

Wireshark: 2.2.0 - 2.2.12, 2.4.0 - 2.4.4

---

External links
https://www.wireshark.org/security/wnpa-sec-2018-06.html

---

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.