CVE-2017-0902

Published: 31 August 2017

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.

Notes

Author	Note
tyhicks	ruby{1.9.1,2.0,2.3} and jruby ship an embedded rubygems.
leosilva	code not present in trusty for version 1.9.1

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
jruby Launchpad, Ubuntu, Debian	trusty	Needs triage
	xenial	Needed
	artful	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	lunar	Needs triage
	upstream	Needs triage
	zesty	Ignored (end of life)
ruby1.9.1 Launchpad, Ubuntu, Debian	kinetic	Does not exist
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	trusty	Does not exist (trusty was not-affected [code not present])
	upstream	Needs triage
	xenial	Does not exist
	zesty	Does not exist
	Patches: upstream: https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32 upstream: https://bugs.ruby-lang.org/attachments/download/6691/rubygems-2613-ruby23.patch upstream: https://bugs.ruby-lang.org/attachments/download/6690/rubygems-2613-ruby22.patch
ruby2.0 Launchpad, Ubuntu, Debian	kinetic	Does not exist
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	trusty	Released (2.0.0.484-1ubuntu2.10)
	upstream	Needs triage
	xenial	Does not exist
	zesty	Does not exist
ruby2.3 Launchpad, Ubuntu, Debian	kinetic	Does not exist
	artful	Released (2.3.3-1ubuntu1.3)
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Released (2.3.1-2~16.04.6)
	zesty	Ignored (end of life)

Severity score breakdown

Parameter	Value
Base score	8.1
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Bugs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873802

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