Off-by-one in Wireshark - CVE-2020-7044
Published: January 16, 2020
Vulnerability identifier: #VU24327
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-7044
CWE-ID: CWE-193
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an off-by-one error within the WASSP dissector. A remote attacker can send specially crafted network traffic, trigger an off-by-one error and crash the application.
Affected software
Wireshark
Opensuse
Fedora
wireshark
Opensuse
Fedora
wireshark
How to mitigate CVE-2020-7044
Install updates from vendor's website.
Wireshark - update to 3.2.1
wireshark - addressed in versions 3.2.2-1.fc30, 3.2.2-1.fc31, 3.2.2-1.fc32, 3.2.3-1.fc30, 3.2.3-1.fc31, 3.2.3-1.fc32
wireshark - addressed in versions 3.2.2-1.fc30, 3.2.2-1.fc31, 3.2.2-1.fc32, 3.2.3-1.fc30, 3.2.3-1.fc31, 3.2.3-1.fc32