CVE-2024-50076 vt: prevent kernel-infoleak in con_font_get()
A local attacker can read uninitialized kernel memory via the con_font_get function, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50076?
CVE-2024-50076 is a medium-severity vulnerability in Linux kernel, published on 29 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
vt: prevent kernel-infoleak in con_font_get()
font.data may not initialize all memory spaces depending on the implementation of vc->vc_sw->con_font_get. This may cause info-leak, so to prevent this, it is safest to modify it to initialize the allocated memory space to 0, and it generally does not affect the overall performance of the system.
Weakness: CWE-909
Which versions are affected by CVE-2024-50076?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50076?
Apply the vendor's patch.
Is CVE-2024-50076 being exploited?
There is no known exploitation of CVE-2024-50076 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-52089, BELL-CVE-2024-50076, DEBIAN-CVE-2024-50076, GHSA-82vq-g77c-v2h9, ROOT-OS-DEBIAN-11-CVE-2024-50076, UBUNTU-CVE-2024-50076.