Buffer overflow in Apple Mac OS X

CVE-2018-18311

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

Vulnerability class: Integer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.117 (96.0th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% 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-2018-18311: held from 0.117 to 0.117.

EPSS over last 30 days · oldest: 0.117 · newest: 0.117 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-18311?
CVE-2018-18311 is a critical-severity vulnerability in Apple Mac OS X, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-12-07.
How severe is CVE-2018-18311?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-18311 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.