CVE-2021-33564
Dragonfly contains remote code execution vulnerability
9.8
CRITICAL
CVSS 3.1
EPSS 72.2%
Description
An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the `verify_url` option is disabled. This may lead to code execution. The problem occurs because the generate and process features mishandle use of the ImageMagick convert utility.
How to fix CVE-2021-33564
To remediate CVE-2021-33564, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.0 or later
Is CVE-2021-33564 being exploited?
Likely — EPSS is 72.2%, placing CVE-2021-33564 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (1)
- from 0, < 1.4.0
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 |