CVE-2022-32296

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Summary

CVECVE-2022-32296
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-06-05 22:15:08 UTC
Updated2026-10-14 17:17:40 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 3.3 LOW from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.004380000 probability, percentile 0.364820000 (date 2026-10-14)

Problem Types: CWE-330 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:L/AC:L/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Mailing List, Patch, Vendor Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Release Notes, Vendor Advisory
[2209.12993] Device Tracking via Linux's New TCP Source Port Selection Algorithm (Extended Version) af854a3a-2127-422b-91ae-364da2661108 arxiv.org
[SECURITY] [DLA 3065-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-419740.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
GitHub - 0xkol/rfc6056-device-tracker: An implementation of a device tracking technique based on Algorithm 4 (Double-Hash Port Selection) of RFC 6056. af854a3a-2127-422b-91ae-364da2661108 github.com
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
Debian -- Security Information -- DSA-5173-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180282 Debian Security Update for linux (DLA 3065-1)
  • 180605 Debian Security Update for linux (DSA 5173-1)
  • 180850 Debian Security Update for linux (CVE-2022-32296)
  • 198942 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-5616-1)
  • 198949 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5622-1)
  • 198950 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-5623-1)
  • 198954 Ubuntu Security Notification for Linux kernel (Raspberry Pi) Vulnerabilities (USN-5630-1)
  • 198962 Ubuntu Security Notification for Linux kernel (Azure CVM) Vulnerabilities (USN-5639-1)
  • 198966 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-5647-1)
  • 198970 Ubuntu Security Notification for Linux kernel (GKE) Vulnerabilities (USN-5654-1)
  • 198974 Ubuntu Security Notification for Linux kernel (GCP) Vulnerabilities (USN-5660-1)
  • 198978 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5669-1)
  • 198985 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5678-1)
  • 198994 Ubuntu Security Notification for Linux kernel (Azure) Vulnerabilities (USN-5687-1)
  • 353976 Amazon Linux Security Advisory for kernel : ALAS-2022-1604
  • 353985 Amazon Linux Security Advisory for kernel : ALAS2-2022-1813
  • 353993 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-016
  • 353994 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-028
  • 354007 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-015
  • 354008 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-030
  • 354017 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-032
  • 354023 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-017
  • 377117 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0158)
  • 378043 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0011)
  • 6140198 AWS Bottlerocket Security Update for kernel (GHSA-cghh-fpjf-mmww)
  • 672045 EulerOS Security Update for kernel (EulerOS-SA-2022-2225)
  • 672086 EulerOS Security Update for kernel (EulerOS-SA-2022-2321)
  • 672114 EulerOS Security Update for kernel (EulerOS-SA-2022-2292)
  • 672139 EulerOS Security Update for kernel (EulerOS-SA-2022-2428)
  • 672141 EulerOS Security Update for kernel (EulerOS-SA-2022-2441)
  • 672158 EulerOS Security Update for kernel (EulerOS-SA-2022-2415)
  • 752702 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:3693-1)
  • 752708 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:3704-1)
  • 752750 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:3844-1)
  • 753063 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4617-1)
  • 753374 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:3809-1)
  • 902171 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9896)
  • 902175 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9910)
  • 902391 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9910-1)
  • 902704 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9896-1)
  • 905865 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9896-2)
  • 906372 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (9910-2)

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