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libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations. A crafted filter program or the 'protochain' primitive used on a crafted network packet can cause the interpreter to loop infinitely.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libpcap | Sep 7, 2026 | Sep 5, 2026 |
| Amazon Linux Ami 2 | — | Upgrade libpcap-develUpgrade libpcap-debuginfoUpgrade libpcap | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade libpcap-develUpgrade libpcapUpgrade libpcap-debuginfoUpgrade libpcap-debugsource | Sep 30, 2026 | Sep 5, 2026 |
| Redhat_linux | — | No solution exists | Sep 10, 2026 | Sep 5, 2026 |
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