Information disclosure in Samba
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.076 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.076 · newest: 0.076 · change: 0.000
Affected products
- Samba — versions 4.4.16, 4.5.14, 4.6.8
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux — versions 6.0, 7.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
- Red Hat Gluster Storage — versions 3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- h20566.www2.hpe.com/hpsc/doc/public/display (Third Party Advisory)
- security.netapp.com/advisory/ntap-20170921-0001/ (Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2790 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/100925 (VDB Entry, Third Party Advisory, vdb-entry)
- www.samba.org/samba/security/CVE-2017-12163.html (Patch, Vendor Advisory)
- www.synology.com/support/security/Synology_SA_17_57_Samba (Third Party Advisory, Mitigation)
- support.hpe.com/hpsc/doc/public/display (Third Party Advisory)
- www.debian.org/security/2017/dsa-3983 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2858 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1039401 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-12163?
- CVE-2017-12163 is a medium-severity vulnerability in Samba, classified under Information Disclosure. CVSS score: 4.1/10. Published 2018-07-26.
- How severe is CVE-2017-12163?
- Medium severity. CVSS v3 base score is 4.1 out of 10.
- Is CVE-2017-12163 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.