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CVE-2017-0903

Published: 11 October 2017

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

Notes

AuthorNote
tyhicks
ruby{1.9.1,2.0,2.3} and jruby ship an embedded rubygems.
leosilva
following http://www.openwall.com/lists/oss-security/2017/10/10/2, versions < 2.0.0 of ruby
are not affected

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
jruby
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(0.1.17.0-1~18.04)
cosmic Ignored
(end of life)
disco Not vulnerable
(0.1.17.0-1~18.04)
eoan Not vulnerable
(0.1.17.0-1~18.04)
focal Not vulnerable
(0.1.17.0-1~18.04)
zesty Ignored
(end of life)
trusty Needs triage

hirsute Not vulnerable
(0.1.17.0-1~18.04)
xenial Needed

groovy Not vulnerable
(0.1.17.0-1~18.04)
impish Not vulnerable
(0.1.17.0-1~18.04)
upstream
Released (0.1.17.0-1~18.04)
mantic Not vulnerable
(9.3.9.0+ds-1)
lunar Ignored
(end of life, was needs-triage)
ruby1.9.1
Launchpad, Ubuntu, Debian
hirsute 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

impish Does not exist

jammy Does not exist

kinetic 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

mantic Does not exist

ruby2.0
Launchpad, Ubuntu, Debian
hirsute 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

impish Does not exist

jammy Does not exist

kinetic 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

mantic Does not exist

ruby2.3
Launchpad, Ubuntu, Debian
hirsute 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

impish Does not exist

jammy Does not exist

kinetic 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)
mantic Does not exist

Severity score breakdown

Parameter Value
Base score 9.8
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