linux: The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence...
CVE-2018-25020 is fixed in linux on 1 platform, first by DEBIAN-CVE-2018-25020, released December 8, 2021. It is not reported as exploited. Patch Radar priority: High.
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 4.17.3-1 | DEBIAN-CVE-2018-25020 | Dec 8, 2021 |
| linux · Debian 13.5 (trixie) | 4.17.3-1 | DEBIAN-CVE-2018-25020 | Dec 8, 2021 |
| linux · Debian 14 | 4.17.3-1 | DEBIAN-CVE-2018-25020 | Dec 8, 2021 |
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