CVE-2019-8323

Published: 27 March 2019

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilities#with_response may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur.

From the Ubuntu Security Team

It was discovered that Gem::GemcutterUtilities#with_response failed to escape certain characters. An attacker could use this vulnerability inject escape sequences into a victim's terminal.

Notes

Author	Note
tyhicks	ruby{1.9.1,2.0,2.3} and jruby ship an embedded rubygems.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
jruby Launchpad, Ubuntu, Debian	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Not vulnerable (9.1.17.0-3)
	focal	Not vulnerable (9.1.17.0-3)
	groovy	Not vulnerable (9.1.17.0-3)
	hirsute	Not vulnerable (9.1.17.0-3)
	impish	Not vulnerable (9.1.17.0-3)
	lunar	Not vulnerable (9.1.17.0-3)
	mantic	Not vulnerable (9.1.17.0-3)
	trusty	Released (1.5.6-9+deb8u2build0.14.04.1~esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Needs triage
	xenial	Not vulnerable (code not present)
ruby1.9.1 Launchpad, Ubuntu, Debian	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
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Released (1.9.3.484-2ubuntu1.14)
	upstream	Needs triage
	xenial	Does not exist
ruby2.0 Launchpad, Ubuntu, Debian	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
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Released (2.0.0.484-1ubuntu2.13)
	upstream	Needs triage
	xenial	Does not exist
ruby2.1 Launchpad, Ubuntu, Debian	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
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
ruby2.3 Launchpad, Ubuntu, Debian	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
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Released (2.3.1-2~16.04.12)
ruby2.5 Launchpad, Ubuntu, Debian	bionic	Released (2.5.1-1ubuntu1.2)
	cosmic	Released (2.5.1-5ubuntu4.3)
	disco	Released (2.5.5-1)
	eoan	Released (2.5.5-1)
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

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