CVE-2018-13043 Code injection in n/a
Attackers can execute arbitrary code via unsafe YAML loading in Debian devscripts scripts, requiring a patch to secure the YAML parser configuration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-13043?
CVE-2018-13043 is a critical code injection vulnerability in Canonical Ubuntu Linux, published on 1 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
scripts/grep-excuses.pl in Debian devscripts through 2.18.3 allows code execution through unsafe YAML loading because YAML::Syck is used without a configuration that prevents unintended blessing.
Weakness: CWE-94
Which versions are affected by CVE-2018-13043?
It affects 2 products.
Products include Canonical Ubuntu Linux, Debian Devscripts.
How do I fix CVE-2018-13043?
Apply the vendor's patch.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2018-13043 being exploited?
There is no known exploitation of CVE-2018-13043 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-13043, GHSA-6229-3fh2-qhp3, UBUNTU-CVE-2018-13043, USN-3704-1.