CVE-2021-23158
htmldoc - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.33%
Description
A flaw was found in htmldoc in v1.9.12. Double-free in function pspdf_export(),in ps-pdf.cxx may result in a write-what-where condition, allowing an attacker to execute arbitrary code and denial of service.
How to fix CVE-2021-23158
To remediate CVE-2021-23158, upgrade the affected package to a fixed version below.
- Debian/htmldoc—upgrade to 1.9.11-4 or later
- —upgrade to 1.9.3-1+deb10u2 or later
Is CVE-2021-23158 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.9.11-4
- from 0, < 1.9.3-1+deb10u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |