RCE in Samba
CVE-2016-2119
libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1494.html (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/91700 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2016-1486.html (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201805-07 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2016-07/msg00060.html (vendor-advisory, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1487.html (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1036244 (VDB Entry, Third Party Advisory, vdb-entry)
- www.samba.org/samba/security/CVE-2016-2119.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-2119?
- CVE-2016-2119 is a high-severity vulnerability in Samba, classified under Code Injection. CVSS score: 7.5/10. Published 2016-07-07.
- How severe is CVE-2016-2119?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-2119 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.