CVE-2017-17790

Publication date 20 December 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby1.9.1	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 1.9.3.484-2ubuntu1.7
ruby2.3	18.04 LTS bionic	Not in release
	17.10 artful	Fixed 2.3.3-1ubuntu1.2
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 2.3.1-2~16.04.5
	14.04 LTS trusty	Not in release
ruby2.5	18.04 LTS bionic	Fixed 2.5.1-1
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)