CVE-2020-17368 Command injection in n/a

What is CVE-2020-17368?

CVE-2020-17368 is a critical command injection vulnerability in Debian Debian Linux, published on 11 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Firejail through 0.9.62 mishandles shell metacharacters during use of the --output or --output-stderr option, which may lead to command injection.

Weakness: CWE-78

Which versions are affected by CVE-2020-17368?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Firejail Project Firejail, Opensuse Leap.

How do I fix CVE-2020-17368?

Upgrade to a fixed version.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2020-17368 being exploited?

There is no known exploitation of CVE-2020-17368 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-17368, GHSA-gf7v-83rf-3674, UBUNTU-CVE-2020-17368.