Vulnerability 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.
CVSS Score
3.3
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.17.9 |
Related Weaknesses (CWE)
References
- https://arxiv.org/abs/2209.12993
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9Release NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8Mailing ListPatchVendor Advisory
- https://github.com/0xkol/rfc6056-device-tracker
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173
- https://arxiv.org/abs/2209.12993
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9Release NotesVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8Mailing ListPatchVendor Advisory
- https://github.com/0xkol/rfc6056-device-tracker
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://www.debian.org/security/2022/dsa-5173
FAQ
What is CVE-2022-32296?
CVE-2022-32296 is a vulnerability with a CVSS score of 3.3 (LOW). 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...
How severe is CVE-2022-32296?
CVE-2022-32296 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-32296?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.