CVE-2019-11480 Ubuntu kernel snap build process could use unauthenticated sources
Attackers can inject malicious packages into the Ubuntu kernel snap build process via MITM due to insecure apt options, compromising the resulting kernel image.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11480?
CVE-2019-11480 is a high-severity vulnerability in Canonical pc-kernel, published on 14 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The pc-kernel snap build process hardcoded the --allow-insecure-repositories and --allow-unauthenticated apt options when creating the build chroot environment. This could allow an attacker who is able to perform a MITM attack between the build environment and the Ubuntu archive to install a malicious package within the build chroot. This issue affects pc-kernel versions prior to and including 2019-07-16
Which versions are affected by CVE-2019-11480?
It affects 1 product.
Products include Canonical C-Kernel.
How do I fix CVE-2019-11480?
No fix has been published for CVE-2019-11480 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-11480 being exploited?
There is no known exploitation of CVE-2019-11480 in the wild and no public exploit code.
Sources
Also known as GHSA-vj59-q97j-4hgq.