CVE-2018-16396
UnknownEPSS 7.97%
Last modified
CVE-2018-16396 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.97% chance of exploitation in the next 30 days.
Description
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.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Ruby-Lang | Ruby | >= 2.3.0, <= 2.3.7 | — |
| Ruby-Lang | Ruby | >= 2.4.0, <= 2.4.4 | — |
| Ruby-Lang | Ruby | >= 2.5.0, <= 2.5.1 | — |
| Ruby-Lang | Ruby | 2.6.0 | Preview1 |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Canonical | Ubuntu Linux | 18.04 | — |
| Canonical | Ubuntu Linux | 18.10 | — |
| Debian | Debian Linux | 8.0 | — |
| Debian | Debian Linux | 9.0 | — |
| Redhat | Enterprise Linux | 6.0 | — |
| Redhat | Enterprise Linux | 7.0 | — |
| Redhat | Enterprise Linux | 7.4 | — |
| Redhat | Enterprise Linux | 7.5 | — |
| Redhat | Enterprise Linux | 7.6 | — |
References
- http://www.securitytracker.com/id/1042106Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3729Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3730Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3731Third Party Advisory
- https://hackerone.com/reports/385070Permissions Required, Third 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
- https://www.debian.org/security/2018/dsa-4332Third Party Advisory
- http://www.securitytracker.com/id/1042106Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3729Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3730Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3731Third Party Advisory
- https://hackerone.com/reports/385070Permissions Required, Third 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
- https://www.debian.org/security/2018/dsa-4332Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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. It does not taint strings that result from unpacking tainted strings with some formats.
How severe is CVE-2018-16396?
Severity scoring for CVE-2018-16396 is pending analysis. The EPSS model estimates a 7.97% probability of exploitation in the next 30 days.
How do I fix CVE-2018-16396?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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