Out-of-bounds write in Wireshark - CVE-2017-13766

Vulnerability identifier: #VU8073

CSH Severity: Low

CVSS v4: 8.7 [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]

CVE-ID: CVE-2017-13766

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

Wireshark
Debian Linux
Fedora
wireshark (Alpine package)
firefox-esr (Alpine package)
wireshark

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

wireshark (Alpine package) - update to 2.2.10-r0
wireshark - update to 2.4.2-1.fc27

• https://www.wireshark.org/security/wnpa-sec-2017-39.html

• Multiple vulnerabilities in Wireshark
• Debian update for wireshark
• Out-of-bounds write in wireshark (Alpine package)
• Out-of-bounds write in firefox-esr (Alpine package)
• Fedora 27 update for wireshark