CVE-2016-2118 Security feature bypass in n/a

What is CVE-2016-2118?

CVE-2016-2118 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 12 Apr 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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."

Weakness: CWE-254

Which versions are affected by CVE-2016-2118?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Samba Samba.

How do I fix CVE-2016-2118?

Upgrade to a fixed version.

Is CVE-2016-2118 being exploited?

There is no known exploitation of CVE-2016-2118 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-2118, ECHO-6cee-1d08-9b8b, GHSA-9r74-96x3-hvq9, UBUNTU-CVE-2016-2118.