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ReviewHigh

CVE-2022-1734

kernel, linux kernel, debian linux

A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write when non synchronized between cleanup routine and firmware download routine.

CVSS
7
EPSS
0.53%
42.6% percentile
CISA KEV
Not listed
Published
2022.05.19
PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.53%
Technical severityCVSS 7

Vulnerability overview

A flaw in Linux Kernel found in nfcmrvl_nci_unregister_dev() in drivers/nfc/nfcmrvl/main.c can lead to use after free both read or write when non synchronized between cleanup routine and firmware download routine.

Affected product and versions

Product
kernel, linux kernel, debian linux
Affected versions
>= Linux kernel versions prior to 5.18-rc6, >= 4.4 < 4.9.313, >= 4.10 < 4.14.278, >= 4.15 < 4.19.242, >= 4.20 < 5.4.193, >= 5.5 < 5.10.115, >= 5.11 < 5.15.39, >= 5.16 < 5.17.7, 5.18, 9.0, 10.0
Fixed versions
4.9.313, 4.14.278, 4.19.242, 5.4.193, 5.10.115, 5.15.39, 5.17.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that kernel, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416