Infinite loop in Wireshark - CVE-2017-7748
Published: April 13, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39204
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-2017-7748
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the WSP dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-wsp.c by adding a length check.
Affected software
Wireshark
Fedora
wireshark
Fedora
wireshark
How to mitigate CVE-2017-7748
Install update from vendor's website.
wireshark - update to 2.2.6-1.fc25