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Review reviewHigh

CVE-2022-48967

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: NFC: nci: Bounds check struct nfc_target arrays While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported: memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18) This appears to be a legitimate lack of bounds checking in nci_add_new_protocol(). Add the missing checks.

CVSS
7.1
EPSS
0.34%
26.9% percentile
CISA KEV
Not listed
Published
2024.10.22
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.34%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: NFC: nci: Bounds check struct nfc_target arrays While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported: memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18) This appears to be a legitimate lack of bounds checking in nci_add_new_protocol(). Add the missing checks.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 6b37f0dc0638d13a006f2f24d2f6ca61e83bc714, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < dbdcfb9f6748218a149f62468d6297ce3f014e9c, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < cff35329070b96b4484d23f9f48a5ca2c947e750, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 6778434706940b8fad7ef35f410d2b9929f256d2, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 27eb2d7a1b9987b6d0429b7716b1ff3b82c4ffc9, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 908b2da426fe9c3ce74cf541ba40e7a4251db191, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < f41547546db9af99da2c34e3368664d7a79cefae, >= 019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < e329e71013c9b5a4535b099208493c7826ee4a64, >= 3.4, >= 3.4 < 4.9.336, >= 4.10 < 4.14.302, >= 4.15 < 4.19.269, >= 4.20 < 5.4.227, >= 5.5 < 5.10.159, >= 5.11 < 5.15.83, >= 5.16 < 6.0.13, 6.1
Fixed versions
4.9.336, 4.14.302, 4.19.269, 5.4.227, 5.10.159, 5.15.83, 6.0.13

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel 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:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE
CWE-129
CVE-2022-48967 — Linux Linux, linux kernel | SECUFOCUS NOW