Input validation error in Wireshark - CVE-2021-22235

Vulnerability identifier: #VU54877

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-2021-22235

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

Wireshark
Arch Linux
Gentoo Linux
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Module for Basesystem
wireshark (Debian package)
wireshark-debuginfo
wireshark-debugsource
wireshark-devel
wireshark-ui-qt
wireshark-ui-qt-debuginfo
libwireshark14
libwireshark14-debuginfo
libwiretap11
libwiretap11-debuginfo
libwsutil12
libwsutil12-debuginfo
wireshark
net-analyzer/wireshark

Install updates from vendor's website.

Wireshark - addressed in versions 3.2.15, 3.4.7
wireshark (Debian package) - update to 3.4.10-0+deb11u1
wireshark-debuginfo - update to 3.4.7-3.59.1
wireshark-debugsource - update to 3.4.7-3.59.1
wireshark-devel - update to 3.4.7-3.59.1
wireshark-ui-qt - update to 3.4.7-3.59.1
wireshark-ui-qt-debuginfo - update to 3.4.7-3.59.1
libwireshark14 - update to 3.4.7-3.59.1
libwireshark14-debuginfo - update to 3.4.7-3.59.1
libwiretap11 - update to 3.4.7-3.59.1
libwiretap11-debuginfo - update to 3.4.7-3.59.1
libwsutil12 - update to 3.4.7-3.59.1
libwsutil12-debuginfo - update to 3.4.7-3.59.1
wireshark - update to 3.4.7-3.59.1
net-analyzer/wireshark - update to 3.6.8

• https://www.wireshark.org/security/wnpa-sec-2021-06.html

• Denial of service in Wireshark DNP dissector
• Arch Linux update for wireshark-cli
• Debian update for wireshark
• SUSE update for wireshark
• Gentoo update for Wireshark