What’s Vulnerable › Vulnerabilities

CVE-2019-12589

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-06-03 · updated 2026-06-17
• Weakness: CWE-732

Description

In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a lack of intended seccomp restrictions for a process that is joined to the jail after a filter has been modified by an attacker.

Affected products

• Firejail Project Firejail: before 0.9.60 — fixed in 0.9.60

How to fix

Upgrade to a fixed version: Firejail Project Firejail 0.9.60. Check the vendor advisory for mitigations.

References

• https://github.com/netblue30/firejail/commit/eecf35c2f8249489a1d3e512bb07f0d427183134
• https://github.com/netblue30/firejail/issues/2718
• https://github.com/netblue30/firejail/releases/tag/0.9.60
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CDY7B73YDRBURA25APSHD5PFEO4TNSFW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGVULJ6IKVDO6UAVIQRHQVSKOUD6QDWM/
• https://github.com/netblue30/firejail/commit/eecf35c2f8249489a1d3e512bb07f0d427183134
• https://github.com/netblue30/firejail/issues/2718
• https://github.com/netblue30/firejail/releases/tag/0.9.60
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CDY7B73YDRBURA25APSHD5PFEO4TNSFW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGVULJ6IKVDO6UAVIQRHQVSKOUD6QDWM/

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