MEDIUM 5.5 Microsoft
CVE-2023-38409
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).
Microsoft Security Update 2023-Jul: 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).
Affected Products
- cm1 kernel 5.10.188.1-1 on CBL Mariner 1.0
- cbl2 hyperv-daemons 5.15.122.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.122.1-2 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38409
- https://nvd.nist.gov/vuln/detail/CVE-2023-38409
This medium severity vulnerability with a CVSS score of 5.5 was published on 2023-07-11 via Microsoft. Affected: cm1 kernel 5.10.188.1-1 on CBL Mariner 1.0, cbl2 hyperv-daemons 5.15.122.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.122.1-2 on CBL Mariner 2.0.
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