Vulnerability Description
The MS-SAMR and MS-LSAD protocol implementations in 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 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 3.6.0, < 4.2.10 |
| Canonical | Ubuntu Linux | 12.04 |
| Debian | Debian Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://badlock.org/Technical DescriptionThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.htmlMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.htmlMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.htmlMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0611.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0612.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0613.htmlThird Party Advisory
FAQ
What is CVE-2016-2118?
CVE-2016-2118 is a vulnerability with a CVSS score of 7.5 (HIGH). The MS-SAMR and MS-LSAD protocol implementations in 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 mishandle DCERPC connections, which allows man-in-the-middle attackers t...
How severe is CVE-2016-2118?
CVE-2016-2118 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2118?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Samba, Canonical Ubuntu Linux, Debian Debian Linux.