CVE-2017-12836 Command injection in n/a

What is CVE-2017-12836?

CVE-2017-12836 is a high-severity command injection vulnerability in Canonical Ubuntu Linux, published on 24 Aug 2017. 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

CVS 1.12.x, when configured to use SSH for remote repositories, might allow remote attackers to execute arbitrary code via a repository URL with a crafted hostname, as demonstrated by "-oProxyCommand=id;localhost:/bar."

Which versions are affected by CVE-2017-12836?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Gnu Cvs.

How do I fix CVE-2017-12836?

Apply the vendor's patch.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2017-12836 being exploited?

There is no known exploitation of CVE-2017-12836 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 ALPINE-CVE-2017-12836, CLEANSTART-2023-NP57174, DEBIAN-CVE-2017-12836, DLA-1056-1, DSA-3940-1, GHSA-gw7c-p8cp-7935 and 6 more.