CVE-2018-9258: Input Validation
In Wireshark 2.4.0 to 2.4.5, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by preserving valid data sources.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
alpine/wiresharkto a version that resolves this vulnerability.Fixed in 2.4.6-r0 - Upgrade
Upgrade
alpine/wiresharkto a version that resolves this vulnerability.Fixed in 2.2.14-r0
Event History
Frequently Asked Questions
What is the severity of CVE-2018-9258?
CVE-2018-9258 has a medium severity rating due to the potential for a crash in the TCP dissector.
How do I fix CVE-2018-9258?
To fix CVE-2018-9258, update Wireshark to version 2.4.6 or later.
Which versions of Wireshark are affected by CVE-2018-9258?
Wireshark versions 2.4.0 through 2.4.5 are affected by CVE-2018-9258.
Is CVE-2018-9258 exploitable remotely?
CVE-2018-9258 is not classified as remotely exploitable as it requires local access to the application.
What component of Wireshark is affected by CVE-2018-9258?
The TCP dissector component of Wireshark is affected by CVE-2018-9258.