CVE-2022-32296

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.

References

https://www.debian.org/security/2022/dsa-5173

https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

https://github.com/0xkol/rfc6056-device-tracker

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9

https://arxiv.org/abs/2209.12993

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3