Input validation error in Wireshark - CVE-2020-25866
Published: September 24, 2020
Vulnerability identifier: #VU47002
CSH Severity: Medium
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-2020-25866
CWE-ID: CWE-20
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 insufficient validation of user-supplied input within the BLIP dissector in Wireshark. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Wireshark
wireshark (Alpine package)
wireshark
Opensuse
Fedora
wireshark (Alpine package)
wireshark
Opensuse
Fedora
How to mitigate CVE-2020-25866
Install updates from vendor's website.
Wireshark - addressed in versions 3.0.14, 3.2.7
wireshark - addressed in versions 3.2.7-1.fc31, 3.2.7-1.fc32, 3.2.7-2.fc33
wireshark - addressed in versions 3.2.7-1.fc31, 3.2.7-1.fc32, 3.2.7-2.fc33