linux: The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used
CVE-2022-32296 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-32296, released June 5, 2022. It is not reported as exploited. Patch Radar priority: Routine.
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.17.11-1 | DEBIAN-CVE-2022-32296 | Jun 5, 2022 |
| linux · Debian 13.5 (trixie) | 5.17.11-1 | DEBIAN-CVE-2022-32296 | Jun 5, 2022 |
| linux · Debian 14 | 5.17.11-1 | DEBIAN-CVE-2022-32296 | Jun 5, 2022 |
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