CVE-2017-6473
HighSummary
In Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash triggered by a malformed capture file. This was addressed by validating the relationships between lengths and offsets in the code.
Risk Assessment
Organizations may face application crashes, leading to potential data loss or downtime. Malicious files could be used to exploit this vulnerability.
Recommendation
It is recommended to update Wireshark to the latest version to mitigate this vulnerability. Additionally, monitor input files for malicious data.
Other vulnerabilities in Wireshark
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In Wireshark versions 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed by trying to detect self-referencing pointers.
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In Wireshark versions 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the MSNIP dissector misuses a NULL pointer. This was addressed by validating an IPv4 address.
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In Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the WSP dissector could enter an infinite loop, triggered by packet injection or a malformed capture file. This was addressed by adding a length check.
Original NVD description (English source)
In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash, triggered by a malformed capture file. This was addressed in wiretap/k12.c by validating the relationships between lengths and offsets.