CVE-2020-27418 Use after free in n/a
Attackers can obtain sensitive information via a use-after-free flaw in the Linux kernel's vgacon_invert_region function.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-27418?
CVE-2020-27418 is a medium-severity use after free vulnerability in n/a, published on 22 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Use After Free vulnerability in Fedora Linux kernel 5.9.0-rc9 allows attackers to obatin sensitive information via vgacon_invert_region() function.
Weakness: CWE-416
Which versions are affected by CVE-2020-27418?
It affects 1 product.
Products include Fedoraproject Fedora Linux Kernel.
How do I fix CVE-2020-27418?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-27418 being exploited?
There is no known exploitation of CVE-2020-27418 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-27418, GHSA-v9gh-f54x-54f5, UBUNTU-CVE-2020-27418.