CVE-2019-18282
published 2020-01-16CVE-2019-18282: The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the…
medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 5.3.15-1 (bookworm) | linux 5.3.15-1 (bookworm) |
| android | — | — | |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | >= 0 < 5.3.15-1 | 5.3.15-1 |
| linux | linux_kernel | 4.3 – 5.3.10 | — |
| netapp | e-series_santricity_os_controller | 11.0.0 – 11.70.1 | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
osv5.3MEDIUM