CVE-2021-37220
5.5
MEDIUM
CVSS 3.1
EPSS 0.21%
Description
MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.
How to fix CVE-2021-37220
To remediate CVE-2021-37220, upgrade the affected package to a fixed version below.
- Debian/mupdf—upgrade to 1.17.0+ds1-2 or later
Is CVE-2021-37220 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.17.0+ds1-2
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 |