CVE-2017-12163
MEDIUMCVSS 4.1/10EPSS 7.59%
Last modified
CVE-2017-12163 is a medium-severity vulnerability rated 4.1/10 on the CVSS scale. An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.. EPSS estimates a 7.59% chance of exploitation in the next 30 days.
Description
An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.
Metrics
CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | < 4.4.16 |
| Samba | Samba | >= 4.5.0, < 4.5.14 |
| Samba | Samba | >= 4.6.0, < 4.6.8 |
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Redhat | Gluster Storage | 3.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://www.securityfocus.com/bid/100925Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039401Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2789Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2790Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2791Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2858Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12163Issue Tracking, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170921-0001/Third Party Advisory
- https://www.debian.org/security/2017/dsa-3983Third Party Advisory
- https://www.samba.org/samba/security/CVE-2017-12163.htmlPatch, Vendor Advisory
- https://www.synology.com/support/security/Synology_SA_17_57_SambaMitigation, Third Party Advisory
- http://www.securityfocus.com/bid/100925Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039401Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2789Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2790Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2791Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2858Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12163Issue Tracking, Mitigation, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170921-0001/Third Party Advisory
- https://www.debian.org/security/2017/dsa-3983Third Party Advisory
- https://www.samba.org/samba/security/CVE-2017-12163.htmlPatch, Vendor Advisory
- https://www.synology.com/support/security/Synology_SA_17_57_SambaMitigation, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-12163?
An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.
How severe is CVE-2017-12163?
CVE-2017-12163 has a CVSS score of 4.1/10 (MEDIUM severity). The EPSS model estimates a 7.59% probability of exploitation in the next 30 days.
How do I fix CVE-2017-12163?
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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