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CVE Record

CVE-2022-28388: usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double free.

usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double free.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-28388 is a Linux kernel double-free bug in a USB CAN bus driver. The main business risk is local denial of service: a low-privileged local user could potentially crash an affected system. It is not described as remote code execution, data theft, or actively exploited in the supplied sources.

Executive priority

Treat as a moderate operational reliability risk. Patch through normal kernel maintenance, prioritizing shared Linux hosts, appliances, and systems with local user access or CAN USB hardware exposure.

Technical view

The flaw is in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c through Linux 5.17.1. It is classified as CWE-415 double free with CVSS 5.5. The vector requires local access and low privileges, with high availability impact and no stated confidentiality or integrity impact.

Likely exposure

Exposure is most likely on Linux systems running affected kernels with the usb_8dev USB CAN driver present or used. General servers without this driver path are less likely to be practically exposed, but distribution kernels should still be checked against vendor advisories.

Exploitation context

The provided data does not show active exploitation, and the CVE is not marked KEV. CVSS indicates local, low-complexity exploitation requiring low privileges and no user interaction, primarily affecting availability.

Researcher notes

Evidence supports a local availability-impacting double free in the Linux usb_8dev CAN USB driver. The supplied affected product metadata is sparse, so distribution and vendor advisories are the best source for exact package and appliance exposure.

Mitigation direction

  • Apply Linux kernel updates from the relevant distribution or appliance vendor.
  • Verify the update includes the upstream fix for commit 3d3925ff6433.
  • Review Fedora, Debian, and NetApp advisories for affected product-specific guidance.
  • For systems not needing CAN USB support, consider vendor-approved driver disablement.
  • Prioritize systems where local users or workloads are less trusted.

Validation and detection

  • Inventory Linux kernel versions and compare them with vendor fixed releases.
  • Check whether usb_8dev or related CAN USB support is present or enabled.
  • Confirm patched systems include the referenced upstream Linux commit or equivalent backport.
  • Map Fedora, Debian, and NetApp assets to the listed advisories.
  • Document any systems awaiting vendor-specific remediation guidance.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-415: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2022-28388 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2022-28388Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-415

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-415 · source CWE mapping

Double Free

Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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