i2c: validate user data in compat ioctl (Linux Linux)

CVE-2021-46934
LOW 3.3

At a glance

Source
NVD
EPSS
EPSS 0.23 % · percentile 14 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: validate user data in compat ioctl Wrong user data may cause warning in i2c_transfer(), ex: zero msgs. Userspace should not be able to trigger warnings, so this patch adds validation checks for user data in compact ioctl to prevent reported warnings

Weaknesses (CWE)

  • CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

Scores

VersionScoreVectorScored by
CVSS 3.1LOW 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b < 407c8708fb1bf2d4afc5337ef50635cf540c364b ; affected 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b < 9e4a3f47eff476097e0c7faac04d1831fc70237d ; affected 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b < 8d31cbab4c295d7010ebb729e9d02d0e9cece18f ; affected 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b < f68599581067e8a5a8901ba9eb270b4519690e26 ; affected 7d5cb45655f2e9e37ef75d18f50c0072ef14a38b < bb436283e25aaf1533ce061605d23a9564447bdf
Linux · Linuxaffected 4.15 ; unaffected 0 < 4.15 ; unaffected 4.19.224 ≤ 4.19.* ; unaffected 5.4.170 ≤ 5.4.* ; unaffected 5.10.90 ≤ 5.10.* ; unaffected 5.15.13 ≤ 5.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD