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CVE

CVE-2018-16396

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. I

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.

HIGH · CVSS 8.1 EPSS 0.03126
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules3 YARA rules0
▤

Affected Products & Versions

7
ruby-lang ruby>= 2.3.0 and <= 2.3.7
ruby-lang ruby>= 2.4.0 and <= 2.4.4
ruby-lang ruby>= 2.5.0 and <= 2.5.1
ruby-lang rubyall versions
canonical ubuntu linuxall versions
debian linuxall versions
redhat enterprise linuxall versions
◈

Sigma Hunt Rules

3
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumRuby on Rails Framework Exceptions
productmediumPotential Ruby Reverse Shell
productmediumRuby Inline Command Execution
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Nov 2018 · 06:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

10
suse-csafSUSE-SU-2020:1570-1
suse-csafopenSUSE-SU-2019:1771-1
suse-csafSUSE-SU-2019:1804-1
rhsaRHSA-2020:2769Low
usnUSN-3808-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
http://www.securitytracker.com/id/1042106Third Party AdvisoryVDB Entry
https://hackerone.com/reports/385070Permissions RequiredThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00020.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20190221-0002/Third Party Advisory
https://usn.ubuntu.com/3808-1/Third Party Advisory
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