CVE-2017-17790
Published: 20 December 2017
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ruby2.5 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| trusty |
Does not exist
|
|
| bionic |
Released
(2.5.1-1)
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
ruby1.9.1 Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| trusty |
Released
(1.9.3.484-2ubuntu1.7)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
| artful |
Does not exist
|
|
| bionic |
Does not exist
|
|
|
ruby2.3 Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| trusty |
Does not exist
|
|
| xenial |
Released
(2.3.1-2~16.04.5)
|
|
| zesty |
Ignored
(end of life)
|
|
| artful |
Released
(2.3.3-1ubuntu1.2)
|
|
| bionic |
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 |