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Amazon Linux AMI: CVE-2017-17790: Security patch for ruby20,ruby22,ruby23,ruby24 (ALAS-2018-983)

Severity CVSS Published Added Modified
8 (AV:N/AC:L/Au:N/C:P/I:P/A:P) December 20, 2017 April 06, 2018 September 19, 2018

Description

The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.

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References

Solution

amazon-linux-upgrade-ruby20