Libpcap: Use-of-uninitialized-value in pcapint_filter_with_aux_data

The vulnerability is a use-of-uninitialized-value detected in the pcapint_filter_with_aux_data function of libpcap, as reported by OSS-Fuzz. The crash occurs during packet filtering operations, specifically in the call stack involving pcapint_filter_with_aux_data, pcapint_filter, and pcap_offline_filter. No additional technical details, affected versions, or remediation information are provided in the available data.

The impact involves potential undefined behavior due to use of uninitialized memory in libpcap's packet filtering code. Without further details or exploitation reports, the precise security impact cannot be determined. No known exploits are reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should monitor official libpcap channels for updates. No vendor advisory or patch links are currently provided.