CVE-2023-38409

Description

An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fffb0b52d5258554c645c966c6cbef7de50b851d patch mailing list
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.12 release notes mailing list

Frequently Asked Questions

What is the severity of CVE-2023-38409?
CVE-2023-38409 has been scored as a medium severity vulnerability.
How to fix CVE-2023-38409?
To fix CVE-2023-38409, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-38409 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-38409 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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