Out-of-bounds Read in Apple iOS

CVE-2019-6231

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3. A malicious application may be able to read restricted memory.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (70.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-6231?
CVE-2019-6231 is a medium-severity vulnerability in Apple iOS, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2019-03-05.
How severe is CVE-2019-6231?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2019-6231 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.