Description
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.
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.15.0-47.51 |
| linux-aws | — | 5.15.0-1019.23 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1019.23~20.04.1 |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1085.92~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1142.154~16.04.1 |
| linux-azure | — | 5.15.0-1019.24 |
| linux-azure-4.15 | — | 4.15.0-1153.168 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1019.24~20.04.1 |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1091.96~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-dell300x | — | 4.15.0-1054.59 |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1017.23 |
| linux-gcp-4.15 | — | 4.15.0-1137.153 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1017.23~20.04.2 |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1089.97~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.15.0-1015.18 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | 5.15.0-1015.18~20.04.1 |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1002.4 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-48.54~20.04.1 |
| linux-hwe-5.4 | — | 5.4.0-126.142~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1013.15 |
| linux-ibm-5.4 | — | 5.4.0-1033.37~18.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | — |
| linux-intel-iotg | — | 5.15.0-1013.17 |
| linux-intel-iotg-5.15 | — | 5.15.0-1015.20~20.04.2 |
| linux-iot | — | 5.4.0-1004.6 |
| linux-kvm | — | 5.15.0-1017.21 |
| linux-lowlatency | — | 5.15.0-47.53 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-48.54~20.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 5.15.0-1007.7 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | 5.14.0-1044.49 |
| linux-oem-5.17 | — | 5.17.0-1011.12 |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oracle | — | 5.15.0-1017.22 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1017.22~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1083.91~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.15.0-1014.16 |
| linux-raspi-5.4 | — | 5.4.0-1070.80~18.04.1 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 5.15.0-1020.20 |
| linux-riscv | — | 5.15.0-1018.21 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1018.21~20.04.1 |
| linux-riscv-5.8 | — | — |
| linux-snapdragon | — | 4.15.0-1138.148 |
References
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