CVE-2026-31912
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| The Tcpdump Group | libpcap | 0 < 1.10.7 | affected |
Weaknesses
- CWE-1285: CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input
- CWE-823: CWE-823 Use of Out-of-range Pointer Offset
- CWE-125: CWE-125 Out-of-bounds Read
References
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