Null pointer dereference in Wireshark - CVE-2017-13764
Published: September 4, 2017
Vulnerability identifier: #VU8074
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-2017-13764
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to NULL pointer dereference in the Modbus 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.
The weakness exists due to NULL pointer dereference in the Modbus 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.
Affected software
Wireshark
Fedora
wireshark
Fedora
wireshark
How to mitigate CVE-2017-13764
The vulnerability is addressed in the following version: 2.4.1.
wireshark - update to 2.4.2-1.fc27