CVE-2017-9345
HighSummary
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.
Risk Assessment
An infinite loop in the DNS dissector can lead to application crashes, affecting the availability of the analytical tool. This may hinder network traffic analysis and result in data loss.
Recommendation
It is recommended to update Wireshark to the latest version to mitigate this vulnerability and ensure application stability.
Other vulnerabilities in Wireshark
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In Wireshark versions up to 2.0.13 and 2.2.x up to 2.2.7, the WBXML dissector could enter an infinite loop triggered by packet injection or a malformed capture file. This was addressed by adding validation of the relationships between indexes and lengths.
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In Wireshark versions 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DHCP dissector could read past the end of a buffer. This was addressed by extracting the Vendor Class Identifier more carefully.
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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.
- CVE-2017-7747High
In Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the PacketBB dissector could crash due to packet injection or a malformed capture file. This was addressed by restricting additions to the protocol tree.
Original NVD description (English source)
In Wireshark 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 in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.