CVE-2023-0414
Wireshark vulnerability analysis and mitigation

Overview

The vulnerability CVE-2023-0414 affects the EAP (Extensible Authentication Protocol) dissector in Wireshark versions 4.0.0 to 4.0.2. The vulnerability was discovered and disclosed on January 18, 2023, and involves a crash in the EAP dissector when processing malformed packets (Wireshark Security).

Technical details

The vulnerability manifests as a crash in the EAP dissector when decoding malformed packets from a pcap file or from the network. The issue was tracked as Wireshark issue 18622 and involves a heap-use-after-free error that occurs during packet processing (Debian Security, Wireshark Issue).

Impact

When exploited, this vulnerability can lead to a denial of service condition by causing Wireshark to crash. This can occur either through packet injection on a network or by opening a specially crafted capture file (Wireshark Security).

Mitigation and workarounds

The vulnerability has been fixed in Wireshark version 4.0.3 and later releases. Users are advised to upgrade to version 4.0.3 or newer to mitigate this security issue (Wireshark Security).

Additional resources


SourceThis report was generated using AI

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