Vulnerability in Samba
CVE-2016-2115
Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not require SMB signing within a DCERPC session over ncacn_np, which allows man-in-the-middle attackers to spoof SMB clients by modifying the client-server data stream.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.102 (95.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.102 · newest: 0.102 · change: 0.000
Affected products
- Samba — versions 3.0.0, 3.0.1, 3.0.2
- Canonical Ubuntu Linux — versions 14.04, 15.10, 16.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.slackware.com/security/viewer.php (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-0612.html (vendor-advisory)
- www.ubuntu.com/usn/USN-2950-1 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-0613.html (vendor-advisory)
- badlock.org/
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html (vendor-advisory)
- www.ubuntu.com/usn/USN-2950-5 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2115?
- CVE-2016-2115 is a medium-severity vulnerability in Samba, classified under CWE-254. CVSS score: 5.9/10. Published 2016-04-25.
- How severe is CVE-2016-2115?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-2115 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.