What is CVE-2018-20309?

CVE-2018-20309 is a high-severity vulnerability in Foxitsoftware Phantompdf, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2021-01-07.

How severe is CVE-2018-20309?

High severity. CVSS v3 base score is 8.1 out of 10.

Out-of-bounds Read in Foxitsoftware Phantompdf

CVE-2018-20309

Foxit Reader before 9.5, and PhantomPDF before 8.3.10 and 9.x before 9.5, has a proxyGetAppEdition race condition that can cause a stack-based buffer overflow or an out-of-bounds read.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Foxitsoftware Phantompdf
Foxitsoftware Reader
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)
CWE-787 — Out-of-bounds Write

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2018-20309?: CVE-2018-20309 is a high-severity vulnerability in Foxitsoftware Phantompdf, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2021-01-07.
How severe is CVE-2018-20309?: High severity. CVSS v3 base score is 8.1 out of 10.