Input validation error in Wireshark - CVE-2020-25863

Vulnerability identifier: #VU47000

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-2020-25863

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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 MIME Multipart dissector in Wireshark. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Wireshark
wireshark (Alpine package)
tshark (Ubuntu package)
wireshark (Ubuntu package)
wireshark-qt (Ubuntu package)
wireshark-common (Ubuntu package)
wireshark-gtk (Ubuntu package)
libwireshark13 (Ubuntu package)
libwireshark11 (Ubuntu package)
wireshark
wireshark-help
wireshark-debugsource
wireshark-debuginfo
wireshark-devel
Ubuntu
Opensuse
openEuler
Fedora

Install updates from vendor's website.

Wireshark - addressed in versions 2.6.20, 3.0.14, 3.2.7
wireshark (Alpine package) - update to 3.2.7-r0
tshark (Ubuntu package) - update to Ubuntu Pro
wireshark (Ubuntu package) - update to Ubuntu Pro
wireshark-qt (Ubuntu package) - update to Ubuntu Pro
wireshark-common (Ubuntu package) - update to Ubuntu Pro
wireshark-gtk (Ubuntu package) - update to Ubuntu Pro
libwireshark13 (Ubuntu package) - update to Ubuntu Pro
libwireshark11 (Ubuntu package) - update to Ubuntu Pro
wireshark - update to 2.6.2-13
wireshark-help - update to 2.6.2-13
wireshark-debugsource - update to 2.6.2-13
wireshark-debuginfo - update to 2.6.2-13
wireshark-devel - update to 2.6.2-13
wireshark - addressed in versions 3.2.7-1.fc31, 3.2.7-1.fc32, 3.2.7-2.fc33

• https://www.wireshark.org/security/wnpa-sec-2020-11.html

• Multiple vulnerabilities in Wireshark
• Input validation error in wireshark (Alpine package)
• OpenSUSE Linux update for wireshark
• OpenSUSE Linux update for wireshark
• Ubuntu update for wireshark
• openEuler 20.03 LTS update for wireshark
• Fedora 31 update for wireshark
• Fedora 33 update for wireshark
• Fedora 32 update for wireshark