Out-of-bounds Read in Apple Mac OS X

CVE-2018-4283

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue affected versions prior to macOS High Sierra 10.13.6.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-4283: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Apple Mac OS X
  • macOS — versions Versions prior to: macOS High Sierra 10.13.6

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-4283?
CVE-2018-4283 is a medium-severity vulnerability in Apple Mac OS X, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2019-04-03.
How severe is CVE-2018-4283?
Medium severity. CVSS v3 base score is 5.5 out of 10.