CVE-2021-36978
5.5
MEDIUM
CVSS 3.1
EPSS 0.08%
Description
QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in Pl_ASCII85Decoder::write (called from Pl_AES_PDF::flush and Pl_AES_PDF::finish) when a certain downstream write fails.
How to fix CVE-2021-36978
To remediate CVE-2021-36978, upgrade the affected package to a fixed version below.
- Debian/qpdf—upgrade to 10.1.0-1 or later
Is CVE-2021-36978 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 10.1.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |