Improper input validation in Wireshark - CVE-2018-14343
Published: July 30, 2018
Vulnerability identifier: #VU14109
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-14343
CWE-ID: CWE-20
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 a flaw when handling malicious input. A remote attacker can inject a malformed packet onto the wire or trick the victim into reading a malformed packet trace file and cause the ASN.1 BER dissector to crash.
The weakness exists due to a flaw when handling malicious input. A remote attacker can inject a malformed packet onto the wire or trick the victim into reading a malformed packet trace file and cause the ASN.1 BER dissector to crash.
Affected software
Wireshark
wireshark (Alpine package)
wireshark
Opensuse
Fedora
wireshark (Alpine package)
wireshark
Opensuse
Fedora
How to mitigate CVE-2018-14343
The vulnerability is addressed in the versions 2.6.2, 2.4.8, 2.2.16
Wireshark - addressed in versions 2.2.16, 2.4.8, 2.6.2
wireshark (Alpine package) - addressed in versions 2.4.8-r0, 2.6.2-r0
wireshark - addressed in versions 2.6.2-1.fc27, 2.6.2-1.fc28
wireshark (Alpine package) - addressed in versions 2.4.8-r0, 2.6.2-r0
wireshark - addressed in versions 2.6.2-1.fc27, 2.6.2-1.fc28