CVE-2018-16396

moderate-risk
Published 2018-11-16

An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats.

Do I need to act?

~
3.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.1/10 High
NETWORK / HIGH complexity

Affected Products (14)

Affected Vendors

Debian Redhat Canonical Ruby-Lang

References (32)

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
Third Party Advisory http://www.securitytracker.com/id/1042106
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3729
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3730
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3731
https://access.redhat.com/errata/RHSA-2019:2028
Permissions Required https://hackerone.com/reports/385070
Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/10/msg00020.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20190221-0002/
Third Party Advisory https://usn.ubuntu.com/3808-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4332
Vendor Advisory https://www.ruby-lang.org/en/news/2018/10/17/not-propagated-taint-flag-in-some-f...
Release Notes https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-3-8-released/
Release Notes https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-4-5-released/
Release Notes https://www.ruby-lang.org/en/news/2018/10/17/ruby-2-5-2-released/
Release Notes https://www.ruby-lang.org/en/news/2018/11/06/ruby-2-6-0-preview3-released/
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
Third Party Advisory http://www.securitytracker.com/id/1042106
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3729
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3730
and 12 more references
49
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 7/34 · Low
Exposure 18/34 · Moderate