CVE-2019-17383

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-09 · updated 2026-06-17
Weakness: CWE-276

Description

The netaddr gem before 2.0.4 for Ruby has misconfigured file permissions, such that a gem install may result in 0777 permissions in the target filesystem.

Affected products

Netaddr Project Netaddr: from 1.5.0 before 1.5.3; from 2.0 before 2.0.4 — fixed in 1.5.3, 2.0.4

How to fix

Upgrade to a fixed version: Netaddr Project Netaddr 1.5.3, 2.0.4. Check the vendor advisory for mitigations.

References

https://github.com/dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51
https://rubygems.org/gems/netaddr/versions
https://github.com/dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51
https://rubygems.org/gems/netaddr/versions

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