Divide by zero in Wireshark - CVE-2017-9344
Published: June 6, 2017
Vulnerability identifier: #VU6906
CSH Severity: Low
CVSS v4: 5.1 [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]
CVE-ID: CVE-2017-9344
CWE-ID: CWE-369
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 divide by zero in the Bluetooth L2CAP dissector when validating an interval value. A remote attacker can inject a malformed packet epan/dissectors/packet-btl2cap.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.
The weakness exists due to divide by zero in the Bluetooth L2CAP dissector when validating an interval value. A remote attacker can inject a malformed packet epan/dissectors/packet-btl2cap.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.
Affected software
Wireshark
Arch Linux
Fedora
wireshark (Alpine package)
wireshark
Arch Linux
Fedora
wireshark (Alpine package)
wireshark
How to mitigate CVE-2017-9344
Update to version 2.0.13, 2.2.7 or later.
wireshark (Alpine package) - update to 2.0.13-r0
wireshark - update to 2.2.7-1.fc26
wireshark - update to 2.2.7-1.fc26