CVE-2017-6964 Privilege escalation in n/a

What is CVE-2017-6964?

CVE-2017-6964 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 28 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

dmcrypt-get-device, as shipped in the eject package of Debian and Ubuntu, does not check the return value of the (1) setuid or (2) setgid function, which might cause dmcrypt-get-device to execute code, which was intended to run as an unprivileged user, as root. This affects eject through 2.1.5+deb1+cvs20081104-13.1 on Debian, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1 on Ubuntu 16.10, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1 on Ubuntu 16.04 LTS, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1 on Ubuntu 14.04 LTS, and eject before 2.1.5+deb1+cvs20081104-9ubuntu0.1 on Ubuntu 12.04 LTS.

Weakness: CWE-252

Which versions are affected by CVE-2017-6964?

It affects 2 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux.

How do I fix CVE-2017-6964?

Apply the vendor's patch.

Is CVE-2017-6964 being exploited?

There is no known exploitation of CVE-2017-6964 in the wild and no public exploit code.

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 DLA-876-1, DSA-3823-1, GHSA-h47x-xw68-3m46, UBUNTU-CVE-2017-6964, USN-3246-1.