Description
In lib/mini_magick/image.rb in MiniMagick before 4.9.4, a fetched remote image filename could cause remote command execution because Image.open input is directly passed to Kernel#open, which accepts a '|' character followed by a command.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ruby-mini-magick | 4.9.2-1.1 | — |
| Debian 13 | ruby-mini-magick | 4.9.2-1.1 | — |
| Debian 12 | ruby-mini-magick | 4.9.2-1.1 | — |
| Debian 10 | ruby-mini-magick | 4.9.2-1+deb10u1 | DSA-4481-1 |
| Debian 9 | ruby-mini-magick | 4.5.1-1+deb9u1 | DSA-4481-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | ruby-mini-magick | 3.8.1-1+deb8u1 | DLA-1948-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | ruby-mini-magick | No fix yet | — |
| Ubuntu 16.04 LTS | ruby-mini-magick | No fix yet | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
masahiro331/CVE-2019-13574 ★ 1 · Jul 16, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | mini_magick | < 4.9.4 | 4.9.4 | GHSA-r7j3-vvh2-xrpj |
Advisories 2
- DSA-4481-1 ruby-mini-magick - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1948-1 ruby-mini-magick - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/minimagick/minimagick/releases/tag/v4.9.4
- https://github.com/minimagick/minimagick/commit/4cd5081e58810d3394d27a67219e8e4e0445d851
- https://github.com/minimagick/minimagick/compare/d484786...293f9bb
- https://benjamin-bouchet.com/blog/vulnerabilite-dans-la-gem-mini_magick-version-4-9-4/
- DSA-4481 vendor-advisory
- 20190715 [SECURITY] [DSA 4481-1] ruby-mini-magick security update mailing-list
- [debian-lts-announce] 20191007 [SECURITY] [DLA 1948-1] ruby-mini-magick security update mailing-list