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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2026-31912

OOBR in libpcap before 1.10.7

Description

libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

The Tcpdump Group libpcap

Default version status: unaffected

  • 0 to < 1.10.7affected

References